The number on being divided by 7 and 9 successively leave remainder 5 and 6 and respectively. the number where divided by 63 will leave remainder.. a) 43 b)99 c)47 d)46
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Answer:
the answer is 43 (a)
Step-by-step explanation:
take x/7 = 5
take x/9 = 6
take LCM of 7&9
= 63
x/7 * 9 =9x/63
x/9 * 7 = 7x/63
x/7 + x/9 = 5+6
= 11
16x/63 = 11 (from LCM)
16x = 63 * 11
16x = 693
x = 693/16
x = 43.3 something...
therefore your answer after rounding off is a) 43
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