The mean of 50 observations was 36. It was found later than an observation 48 was wrongly taken as 23. The corrected (New) means is
The value of √5+√11+√19+√29+√49 is
Simplify 1 + 1/2/1 - 1/2 ÷ 4/7 (2/3 + 3/10) of 1/2/1/2 + 1/3/1/3
√3√0.004096 is equal to
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is
A trader's marked price is 30% above the cost price and gives 1 articles free for buying every 15 articles and thus gains 35%. The marked price in increased above the cost price by
A trader's marked price is 30% above the cost pirce. He allows his customers 10% discount on the marked price. What profit does he make ?
A can do a piece of work in 60 days. He worker for 15 days and then B alone finishes the remaining work in 30 days. The two together can finish the work in
A shopkeeper sells his goods at 10% discount on the marked price. What price should he mark on an article that costs him Rs. 900 to gain 10% ?
A wall of 100 metres can be built by 7 men or 10 women in 10 days. How many days will 14 men and 20 women take to build a wall of 600 metres ?
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