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Work done by a man in 1/2days = 1/6part Work done by a woman in 1/2days = 1/4part Work done by a boy in 1/2days = 1/12part Let one man and one woman together can do a piece of work in 1/2days = No. of x children required According to the question, 1/6 + 1/4+ 1/12= 1 (2 + 3 + x )/12 = 1 5 + x = 12 x = 12 – 5 = 7 Hence, 7 boys will be required.
A principal of ₹8000 is invested at a compound interest rate of 10% per annum. What will be the amount after 2 years?
A train travels at 72 km/h and crosses a platform of length 150 meters in 30 seconds. Find the length of the train.
In Microsoft Excel, what does the function VLOOKUP do?
Which component of a computer is responsible for managing and coordinating various hardware components?
A chemist has three solutions of acid and water. The first solution has 40 percent acid, the second has 60 percent acid, and the third has 80 percent ac...
A car starts from point A and travels at a speed of 40 miles per hour. After 1 hour, a second car starts from point A and travels in the same direction ...
A man invested a certain amount of sum at 12.5% per annum simple interest and earned an interest of Rs.3000 after 5 years. If the same amount is investe...
55-litres of paint is added to a mixture of paint and oil in the ratio 3:5. The ratio of paint and oil in the resulting mixture is 4:3. Find the total v...
I. x ² – 10x + 21 = 0
II. y ² – 8y + 15 = 0
