CSC Company Numerical Ability Arithmetic

A student got twice as many sums wrong as he got right. If he attempted 48 sums in all, how many did he solve correctly ?

A. 12 B. 16
C. 18 D. 24

Read Solution (Total 2)

let right will be x,then wrong will 2x
x+2x=48
x=16
12 years agoHelpfull: Yes(4) No(0)

right= r & wrong= w
r+w=48
w=2r

solving above
r=16
5 years agoHelpfull: Yes(0) No(0)

CSC Other Question

Ayush was born two years after his father's marriage. His mother is five years younger than his father but 20 years older than Ayush who is 10 years old. At what age did the father get married ?

A. 23 years
B. 25 years
C. 33 years
D. 35 years I have a few sweets to be distributed. If I keep 2, 3 or 4 in a pack, I am left with one sweet. If I keep 5 in a pack, I am left with none. What is the minimum number of sweets I have to pack and distribute ?

A. 25 B. 37
C. 54 D. 65