Very easy question Answer is B Y ? In statement I it gives only a ratio so we cannot use it to find the actual figures Look at statement II If one more person joins and the cost is shared equally , then they have to pay less , and the amount is given which is $15 so that actually tells you the total...

Ur taking the direct proportionality as an indirect one

Rate = K [A]^2

and Rate = K'/

Or Rate = R[A]^2/

So this means

R[A']^2 /[2B] = R[A]^2/

or [A'] = root2*[A]

[A'] = 1.41[A]



so its a 40% increase

Since we are taking about Equilateral Triangles and Squares ; If we are given the area we can find the length of a side and If we know the lengths ( actual lengths or the ratio of lengths ) we know the ratio of the perimeters If we know the ration then we know which one is the larger one So both Sta...

For any integer k from 1 to 10, inclusive, the kth of a certain sequence is given by [(-1)^(k+1)]*(1 / 2^k). If T is the sum of the first 10 terms of the sequence, then T is: It has two parts (i) (-1)^(k+1) we see that the answer will be +1 when k is odd and -1 when k is even Why ? (-1) ^even = +1 a...

what is the the value of n? 5^21 x 4^11 = 2 X 10^n The important thing here is 10 can be written as 2*5 The L.H.S = R.H.S of the equation so if you look carefully you can see that we can make tens using the 5's and the 4's ( 4=2*2) The limiting factor here is the number of 5's so the maximum power ...

the question is about factors

So factorize 88,000

88,000 = 88*1000 = 2^3*11*5^3*2^3 = 2^6*5^3*11

But purple is greater than 5 and less than 11 so it should be 8

Why 8 = 2^3 so 2^6 = 8^2

Hence ans= 2

Answer is It could be I or II

Understand this is a could be question not a must be one

X= 0.1 then X^2<2X<1/X , is satisfied so I is OK

X = 0.9 then X^2 < 1/X < 2X is satisfied so II is OK