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Let the three numbers be a, b and c respectively. According to question; (a + b + 2c) = 130 × 2 = 260……………..(1) (a + 2b + c) = 142 × 2 = 284……………..(2) (2a + b + c) = 154 × 2 = 308……………..(3) From equation (1), (2) and (3) 4 × (a + b + c) = 852 a + b + c = 213 (a + b + c)/3 = 71
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A rectangular swimming pool is 40 meters long and 25 meters wide. If the pool is being filled at a rate of 10 cubic meters per minute, how long will it ...
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B is 25 percent more than C and C is 73 percent less than D. If B is 729, then what is the value of D?
The side of a square is equal to the perimeter of an equilateral triangle of area 36√3 cm2 . Find the area of the square?