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Let, the time taken by Bholu and Golu to do the work be ‘x’ days. Units of work done by Golu in a day = 80/20 = 4 units So, 80/x = 9 80 = 9x x = 80/9 Hence, option c.
Find the number of even numbers between 12 and 30.
Aman is forming pairs of two natural numbers, A and B, such that their product equals 350. He wants to determine how many such pairs exist where A and B...
Find the sum of all two-digit numbers that are exactly divisible by 9.
Find the third proportion of 35 and 14.
325 mangoes are distributed among some boys and girls who are 60 in numbers. Each boys gets five mangoes and each girls gets six. The number of boys is :
Sum of squares of three consecutive numbers is 1589. Find the sum of first and third number.