Answer Posted / nikita magar
4/81(10^(n+1)-9n-n)
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A job may be completed in 12 days, working for 8 hours a day if 20 men or 24 women or 40 boys perform the task. If a task four times as big as this is done for 5 hours a day for 12 days, how many men will be required to join 6 women and 2 boys to complete the task?
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Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed?
There are 9 balls of equal size and same weight (they look similar) except 1. How may weighs required to find the dissimilar ball using a weighing balance?
Complete the series 2, 7, 24, 77,__ (hint: 2*12= 24, 7*11= 77, therefore 24*10=
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