1) Mahesh sold 2 bags for 99 each on the first he gained 10% and on the other he lost 10%. Find the total gain or loss%.
a) 1% loss
b) 5% gain
c) 2% loss
d) 4% gain
Explanation- Cost price of 1st bags = 99 x 100/110 = Rs 90/-
Cost price of 2nd bags = 99 x 100/90 = Rs 110/-
S.P (Selling Price) of 2 bags = Rs (2 x 99) = Rs 198/-
C.P of 2 bags = Rs (90+110) = Rs 200/-
Loss= Rs 2 Loss% = 2/200 x 100 = 1% Loss= 1%
2) If the price of rice be raised by 10%. Find the percentage of consumption to be reduced so that the expenditure may be the same as before.
b) 12 1/9 %
c) 9 1/11 %
d) None of these
Explanation: the price of rice is raised by 10% = 100 + 10 = 110
Where 100 is the original price. In order to keep the Expenditure Rs 100.
The consumption of Rs 10/- has to be reduced.
Therefore reduction in consumption = 10/110 x 100% = 9 1/11%
3) Ramesh bowling average is 12.4 takes 5 wicket for 26 runs and thereby decreases his average by 0.4. The number of wicket taken by him before the last match is
Explanation: let x be the number of wicket before ramesh played the last match Total runs in x wicket = (12.4) x X Total runs in (x+5) wicket = 12.4x + 26
Also total runs it (x+5) wickets 12.4x + 26 = 12(x+5)
4) The rate of simple interest by which given money is doubled in 15 years is
Explanation: Interest = Rs 100
Principal= Rs 100 Rate =?, = 15 years
Rate % = Interest x 100/Principal x years = 100 x 100/100 x 15 = 20/3
5) A, B and C are employed to do a piece of work for Rs 529. A and C are supposed to finish 18/23 of the work together. How much shall be paid to B ?
a) Rs 75
b) Rs 350
c) RS 250
d) RS 92
Explanation: B has to do (1-19/23) i.e. 4/23 of the work
Share of B = 4/23 of Rs 529 = Rs 92
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