Search found 62 matches


Source: e-GMAT How many 4 digit numbers greater than 4000 can be formed using the digits from 0 to 8 such that the number is divisible by 4? A. 508 B. 827 C. 828 D. 1034 E. 1035 The OA is D Every 100 has 25 integers which are divisible by 4. 2 of the 25 i.e 92 and 96 contain 9 in them. Hence every ...

by SampathKp

Thu Jan 02, 2020 8:16 am
Forum: Problem Solving
Topic: How many 4 digit numbers greater than 4000 can be formed
Replies: 2
Views: 743

If n is an integer, is n/15 an integer? (1) 3n/15 is an integer. (2) 8n/15 is an integer OA B Source: Official Guide From (1). 3n/15 is integer when n is multiple of 5 . so n=5, 10, 15, 20... n/15 is an integer 15, 45 or multiple of 15 only and not when is 5, 10, 20, 25 etc, So clearly the Informat...

by SampathKp

Tue Dec 31, 2019 1:01 pm
Forum: Data Sufficiency
Topic: If n is an integer, is n/15 an integer? (1) 3n/15 is an
Replies: 2
Views: 446

Source: GMAT Paper Tests From 1985 to 1994, what was the percent increase in total United States trade? 1) Total United States trade in 1985 was 17 percent of the gross domestic product in 1985. 2) Total United States trade in 1994 was 23 percent of the gross domestic product in 1994. The OA is E F...

by SampathKp

Tue Dec 31, 2019 12:52 pm
Forum: Data Sufficiency
Topic: From 1985 to 1994, what was the percent increase in total
Replies: 1
Views: 370

[GMAT math practice question] a, b and c are positive and a < 5. a, b and c satisfy a^2 - a - 2b - 2c = 0, and a + 2b - 2c + 3 = 0. What is the order among a, b and c? A. c > a > b B. a > c > b C. a > b > c D. c > b > a E. b > c > a Let equations a^2 -a-2b-2c =0 - 1 and a+2b-2c+3=0 - 2 Adding 1 and...

by SampathKp

Tue Dec 31, 2019 12:32 pm
Forum: Problem Solving
Topic: a, b and c are positive and a < 5. a, b and c satisfy
Replies: 2
Views: 377

GMAT Paper Test A certain car traveled from one town to another without stopping. What was the car’s average speed for the trip? 1) The car traveled the 90-mile trip in 2 hours. 2) The car traveled the first 40 miles of the trip in 1 hour. OA A Speed = Distance/T From (1) Distance for whole trip ...

by SampathKp

Mon Dec 30, 2019 8:55 am
Forum: Data Sufficiency
Topic: A certain car traveled from one town to another without
Replies: 1
Views: 380

GMAT Prep If a certain sample of data has a mean of 20.0 and a standard deviation of 3.0, which of the following values is more than 2.5 standard deviations from the mean? A. 12.0 B. 13.5 C. 17.0 D. 23.5 E. 26.5 OA A Given that Mean (m) = 20 and SD (d) = 3. Question is which value is m+2.5d or m-2....

by SampathKp

Mon Dec 30, 2019 8:41 am
Forum: Problem Solving
Topic: If a certain sample of data has a mean of 20,0 and a
Replies: 3
Views: 584

[GMAT math practice question] Annie multiplied the date of her birthday by 5, then subtracted 4 from that. She multiplied it by 2 after that and added the month of her birthday again. She got the result of 232. When is her birthday? A. Aug. 20th B. Aug. 23rd C. Sep. 21st D. Sep. 22nd E. Oct. 23rd L...

by SampathKp

Mon Dec 30, 2019 2:42 am
Forum: Problem Solving
Topic: Annie multiplied the date of her birthday by 5, then subtrac
Replies: 2
Views: 414

The first four digits of the six-digit initial password for a shopper's card at a certain grocery store is the customer's birthday in day-month digit form. For example, 15 August corresponds to 1508 and 5 March corresponds to 0503. The 5th digit of the initial password is the units digit of seven t...

by SampathKp

Sun Dec 29, 2019 8:44 pm
Forum: Data Sufficiency
Topic: The first four digits of the six-digit initial password for
Replies: 1
Views: 436

If K is a positive integer less than 10 and N = 4,321 + K, what is the value of K? (1) N is divisible by 3. (2) N is divisible by 7. OA B Source: Official Guide Given that N = 4321 + K and and K is less than 10. From (1) N is divisible by 3 but as K is less than 10 . so it can have upto 3 values fo...

by SampathKp

Sun Dec 29, 2019 8:07 pm
Forum: Data Sufficiency
Topic: If K is a positive integer less than 10 and N = 4,321 + K,
Replies: 2
Views: 498

Source: GMAT Prep An automobile manufacturer offers a station wagon with either a 6-cylinder engine or a 4-cylinder engine and with either a manual transmission or an automatic transmission. A trailer hitch is also offered, but only on a station wagon with a 6-cylinder engine. How many combinations...

by SampathKp

Sun Dec 29, 2019 7:59 pm
Forum: Problem Solving
Topic: An automobile manufacturer offers a station wagon with
Replies: 2
Views: 422

A computer can perform 1,000,000 calculations per second. At this rate, how many hours will it take this computer to perform the 3.6*10^11 calculations required to solve a certain problem? A. 60 B. 100 C. 600 D. 1,000 E. 6,000 OA B Source: Official Guide Given that in 1 sec a computer can perform 1...

by SampathKp

Sun Dec 29, 2019 7:54 pm
Forum: Problem Solving
Topic: A computer can perform 1,000,000 calculations per second. At
Replies: 3
Views: 504

correction

In an auditorium, 360 chairs are to be set up in a rectangular arrangement with x rows of exactly y chairs each. If the only other restriction is that 10 < x < 25, how many different rectangular arrangements are possible? A. Four B. Five C. Six D. Eight E. Nine OA B Source: Official Guide...

by SampathKp

Sun Dec 29, 2019 7:46 pm
Forum: Problem Solving
Topic: In an auditorium, 360 chairs are to be set up in a
Replies: 3
Views: 528

BTGmoderatorDC wrote:If the product of the integers w, x, y and z is 770, and if 1 < w < x < y < z, what is the value of w + z?

A. 10
B. 13
C. 16
D. 18
E. 21



OA B

Source: Official Guide
Prime factors of 770 are 2*5*7*11
So 1<2<5<7<11

So of w+z = 2+11 = 13

Answer is B

by SampathKp

Sun Dec 29, 2019 7:23 pm
Forum: Problem Solving
Topic: If the product of the integers w, x, y and z is 770, and if
Replies: 3
Views: 479

1,234 1,243 1,324 ..... .... +4,321 The addition problem above shows four of the 24 different integers that can be formed by using each of the digits 1,2,3,4 exact;y once in each integer. What is the sum of these 24 integers? A. 24,000 B. 26,664 C. 40,440 D. 60,000 E. 66,660 OA E Source: Official G...

by SampathKp

Sun Dec 29, 2019 7:16 pm
Forum: Problem Solving
Topic: The addition problem above shows four of the 24 different
Replies: 3
Views: 638

Do more than 50% of the children in a certain group have brown hair? 1) 70 % of the boy in the group have brown hair. 2) 30% of the children in the group are girls with brown hair. The OA is E Source: GMAT Prep From the Question, we do not have information on the total number of children in the gro...

by SampathKp

Thu Dec 26, 2019 8:41 am
Forum: Data Sufficiency
Topic: Do more than 50% of the children in a certain group have
Replies: 1
Views: 441