Question

A watch when sold at a profit of 6.25% yields Rs. 95 more than when it sold at a loss of 6.25% , find the cost price of the watch.

Answer 1

let cost price = 100%
if profit 6.25%, means 106.25%
if loss 6.25%, means 93.75%
106.25% - 93.75% = 95 Rs
12.5% = 95Rs then 100% = (95/12.5)×100 = 7.6×100
= 760Rs

Answer 2

Step-by-step explanation:

Adding 8 to 7 results in a sum of digits of 6, and so on down to adding 8 to 1 which gives 9.

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Number Repeating Cycle of Sum of Digits of Multiples

10 {1,2,3,4,5,6,7,8,9}

11 {2,4,6,8,1,3,5,7,9}

12 {3,6,9,3,6,9,3,6,9}

13 {4,8,3,7,2,6,1,5,9}