### Sample Test Mathematics

1
The average of first 50 natural numbers is …………. .
• 1 25.30
• 2 25.5
• 3 25.00
• 4 12.25
2
A fraction which bears the same ratio to 1/27 as 3/11 bear to 5/9 is equal to ……….. .
• 1 1/55
• 2 55
• 3 3/11
• 4 1/11
3
The number of 3-digit numbers divisible by 6, is ………….. .
• 1 149
• 2 166
• 3 150
• 4 151
4
What is 1004 divided by 2?
• 1 52
• 2 502
• 3 520
• 4 5002
5
A clock strikes once at 1 o’clock, twice at 2 o’clock, thrice at 3 o’clock and so on. How many times will it strike in 24 hours?
• 1 78
• 2 136
• 3 156
• 4 196
6
125 gallons of a mixture contains 20% water. What amount of additional water should be added such that water content be raised to 25%?
• 1 15/2 gallons
• 2 17/2 gallons
• 3 19/2 gallons
• 4 81/3 gallons
7
106 × 106 – 94 × 94 = ?
• 1 2004
• 2 2400
• 3 1904
• 4 1906
8
Which of the following numbers gives 240 when added to its own square?
• 1 15
• 2 16
• 3 18
• 4 20
9
Evaluation of 83 × 82 × 8-5 is …………. .
• 1 1
• 2 0
• 3 8
• 4 None of these.
10
• 1 6 : 10
• 2 15 : 25
• 3 0.75 : 1.25
• 4 3 : 5