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i want this in hindi medium

how much percent more than the cost price should a shopkeeper mark his good so that after allowing a discount of 25%on the market price he gains 20%?

If the difference between CI & SI for 3 yrs is 75% less than that for 4 yrs. Find the no. Of years for the same amount to get doubled at the same rate when posing SI.

FCI

gk all history all topics

interest earned on RS 1500 at 2% and RS 1200 at 3% is 1320. what will be the time?

interest earned on 1500 at 2% for 2yrars?

A place where bees are kept in called
A. An apiary
B. A mole
C. A hive
D. A sanctury

In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was :

A) 2500
B) 2700
C) 2900
D) 3100

Permanent hardness of water is due to the presence of
1) Calcium bicarbonate
2) Magnesium bicarbonate
3) Calcium sulphate
4) Sodium bicarbonate