Question
Sum of the present ages of A, B, C and D is 54 years.
After 3 years ratio of their ages is 4:3:2:2. What is C’s present age?Solution
At present sum of age = 54 years After 3 years sum of age will be, => 4x + 3x + 2x + 2x = 54 + 3 × 4 => 11x = 54 + 12 => x = 66/11 => x = 6 C’s present age = 2x – 3 = 9 years
23Â Â Â 30Â Â Â Â 44Â Â Â Â 65Â Â Â Â Â 92Â Â Â Â Â 128
1728, 1762, 1804, 1854, 1912, 1978
32, 41, 66, 115, 236, 415
Find the wrong number in the given number series.
548, 532, 568, 510, 604, 460
850, 849, 841, 814, 750, 688
Find the wrong number in the given number series.
6, 24, 120, 720, 5041, 40320
132, 148, 196, 340, 762, 2068
Find the wrong number in the given number series.
630, 180, 60, 24, 12, 8, 5- Find the wrong number in the given number series.
6, 14, 42, 105, 230, 446 4178, 2153, 928, 303, 78, 55Â Â