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Maths Puzzle
Numerical Ability
4 11 36 129 ??? 2755
Read Solution (Total 1)
4 * 1 + 7 * 1 = 11
11*2 + 7*2 = 36
36*3 + 7*3 = 129
129*4 + 7*4 = 544 ------------ ans
544*5 + 7*5 = 2755
9 years ago
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Manmohan Singh can walk a certain distance in 40 days when he rest 9 hours a day. How long will he take to walk twice the distance twice as fast and rest twice as long each day?