BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Kap 800 Question

Expert replies
by chaitanya.mehrotra » Sun Jul 31, 2011 10:16 pm
Image

If we take R value as 1 then in that case both the Right hand side as well the left hand side will be same ?

In that case should not c take any value ?
Join the discussion
Source: — Problem Solving |

by krishnasty » Mon Aug 01, 2011 12:49 am
IMO C
(R^c)(R^d)(R^e) = R^-12
= R^(c+d+e) = R^-12
= c+d+e = -12

If we have to make all the digits as different and keep c shortest, the best possible combination is c=-9, d = -1, e= -2

Hence, C = -9
Last edited by krishnasty on Mon Aug 01, 2011 12:57 am, edited 1 time in total.
---------------------------------------
Appreciation in thanks please!!
Join the discussion

by naveen451 » Mon Aug 01, 2011 12:50 am
IMO B
Join the discussion

by MBA.Aspirant » Mon Aug 01, 2011 6:56 am
I think it should be C

If R = 1 and the smallest c is -12, the other 2 will be raised to 0 which aren't -ve and not different

if c = -10, other 2 = -1, same scenario

if c= -9, a = -1, b = -2, and R^-12
Join the discussion