When (7777 + 77) is divided by 78, the remainder is:
A. 75
B. 77
C. 76
D. 74
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & \frac{{{{77}^{77}} + 77}}{{78}} \cr & = {\left( { - 1} \right)^{77}} + \left( { - 1} \right) \cr & = - 1 - 1 \cr & = - 2 \cr & {\text{Remainder}} = 78 - 2 = 76 \cr} $$Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
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