Ques:- How many 3 digit numbers are those in between 100 and 300, having first and the last digit as 2?
A. 9
B. 10
C. 11
D. 12
Ques:- Gold is 19 times as heavy as water and copper is 9 times. In what ratio should these metals be mixed so that the mixture may be 15 times as heavy as water?
A. 2 : 1
B. 3 : 2
C. 4 : 3
D. 5 : 4
Ques:- Find out the wrong number in the series:
40960, 10240, 2560, 640, 200, 40, 10
40960, 10240, 2560, 640, 200, 40, 10
A. 40
B. 200
C. 640
D. 2560