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A Heap Of Stones Can Be Made Up Into Groups Of 21. When Made Up Into Groups Of 16, 20, 25 And 45 There Are 3 Stones Left In Each Case. How Many Stones At Least Can There Be In The Heap?

Answer»

LCM of 16, 20, 25, 45 = 3600

1 * 3600 + 3 = 3603 not divisible by 21

2 * 3600 + 3 = 7203 is divisible by 21

LCM of 16, 20, 25, 45 = 3600

1 * 3600 + 3 = 3603 not divisible by 21

2 * 3600 + 3 = 7203 is divisible by 21


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