Sign in
Please select an account to continue using cracku.in
↓ →
Average of five numbers is 61. If the average of first and third number is 69 and the average of second and fourth number is 69, what is the fifth number ?
Let the five numbers be a, b, c, d, e in the given order.
a+b+c+d+e = 61*5=305 ----- Eq 1
a+c = 69*2 = 138
b+d = 69*2 = 138
From eq 1: e=305-(138+138) =305-276 =29
B is the correct answer.
Create a FREE account and get:
Book Free CAT Mentorship
Get personalized CAT strategy from a 99%iler
500+ students mentored
OTP Verification
Enter the 6-digit code sent to your phone
Booking Summary
Enter OTP
Didn't receive the OTP?
Educational materials for CAT preparation