The least number which when increased by 4 is divisible by each of the numbers 10,15,20and25 is
A
296
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B
300
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C
304
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D
308
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Solution
The correct option is A296 Prime factorization of numbers 10=2×5 15=3×5 20=2×2×5 25=5×5
Smallest number divisble by above 4 numbers will be LCM = 22×3×52 = 300
Now , the number we need is 4 less than 300, therefore the number is 300−4 = 296