Question

what is the smallest number which when divided by 15 or 20 leaves a reminder 7 in each caseव्हिच इज द ​

Answer 1

Answer:

127

Step-by-step explanation:

It has to be 7 more than a multiple of each, hence 7 more than a multiple of their LCM. In fact, 7 + the LCM is the least number that works:

15 = 3 * 5 ;

20 = 2^2 * 5 ; and

24 = 2^2 * 3 ;

So the LCM is 2^3 * 3 * 5 = 120 .

So the number that we want is 127 .