Numerical ability sample question and answers

If 81 be divided in proportion of 1/3, 1/6, 1/7, then the first part is
i) 18 ii) 36 iii) 42 iv) 27

X : 6 :: 32 : 34. What is the value of X?
i) 5 ii) 8 iii) 7 iv) 6

Find the value of (85 * 85) - (25 * 25) / (85 + 25)
i) 45 ii) 50 iii) 60 iv) 40

When 75% of a number is added to 75, the result is the number again. Find the number.
i) 300 ii) 200 iii) 250 iv) 350

Find the L.C.M of 6, 8 and 10
i) 120 ii) 58 iii) 86 iv) 24

Find the H.C.F of 24 and 30
i) 6 ii) 8 iii) 2 iv) 4

The compound interest on Rs.5,000 for two years at 4% is
i) Rs.420 ii) Rs.440 iii) Rs.400 iv) Rs.408

The 16th term of the series 1,3,6,10,15, is
i) 120 ii) 132 iii) 136 iv) 126