Question 10
The average savings of Champak in 5 days is Rs 160. If his savings for the first 4 days is Rs 155, Rs 170, Rs 134 and Rs 168 respectively, then what is his saving (in Rs) of the $$5^{th}$$ day?
Solution
Average savings of Champak in 5 days = Rs. 160
=> Total savings in 5 days = $$5\times160=Rs.$$ $$800$$
Savings of first 4 days = $$155+170+134+168=Rs.$$ $$627$$
=> Savings of 5th day = $$800-627=Rs.$$ $$173$$
=> Ans - (D)
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