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Let the sum invested = Rs. 100Y Then interest earned = 100Y × (0.12 × 3) = Rs. 36Y Or, 36Y = 990 Or, Y = (990/36) = 27.5 So, sum invested = Rs. 2750 120% of sum invested = 2750 × 1.20 = Rs. 3300
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‘M’ is 60% more efficient than ‘N’. ‘N’ started the work alone and worked for 20 days and after that ‘N’ is replaced by ‘M’. If the ...
P and Q can do a piece of work in 32 and 40 days respectively. They began to work together but P leaves after sometimes and Q completed remaining work i...
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A man, a woman and a boy can do a work in 4, 8, 16 days respectively. How many boys were required with 1 man and 1 woman to complete the same work in 1/...
If one child has half the work efficiency of an adult, determine the duration required for 8 children to construct a wall, which is 60% as large as the ...
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