After settlement, the average weekly wage in a factory had increased from Rs. 8 to 12 and standard deviation had increased from Rs. 1 to 1.5. The wages have become higher and more uniform, after settlement Comment

When the rate of interest being increased from 10% to 12(1)/(2)%, the yearly income of a person increases by Rs.1,250. The principal amount was

Average daily wage of 50 workers of a factory was ₹ 200 with a standard deviation of ₹ 40. Each worker is given a raise of ₹ 20. What is the new average daily wage and standard deviation ? Have the wages become more or less uniform?

Ramkali saved Rs 5 in the first week of a year and then increased her weekly savings by Rs 1.75. If in the nth week,her weekly savings become Rs 20.75, find n.

In a factory the number of labour decrease in the ratio 9 : 8 and their salary increase in the ratio 14: 15. If total wages of one day decrease by Rs. 6000. Then find the present salary of each day.

In a village the average age of n people is 42 years. But after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after the correction, increased by 1. The value of n is :

The rate of men and women working in a factory is 3:1. Their personal daily wages are in ratio of 4:5 If 15 men are employed on the work and their daily wages is Rs 510, then what is the total wages of the 12 women?