What is the equation of line whose slope is -1/2 and passes through the intersection of the lines x-y = -1 and 3x-2y = 0?

A sofa-set listed at ₹ 800 is sold to a retailer at successive discounts of 25% and 15% by the wholesaler. Then the cost price of the sofa-set for retailer is-

Direction (66-70): What should come in place of the question mark(?) in the following number series?

4    6    14    44  ?   892

P and Q entered into a partnership investing Rs.16000 and Rs.12000 respectively. After 3 months P withdrew Rs.5000 while Q invested Rs.5000 more. After 3 more months R joins the business with a capital of Rs.21000. The share of Q exceeds that of R, out of a total profit of Rs.26488 after one year by? 

If a person purchases a shirt, he gets 6 % discount. However, if he purchases two shirts, he gets 5 % on the first and 8 % on the second. If the price paid by the person for two shirts is ₹ 925, then what will be the marked price of each shirt? 

 ₹ 800 becomes ₹ 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4 %, what amount will ₹ 800 become in 3 years? 

Directions:Study the following table carefully to answer these questions:

Percentage of Marks obtained by six students in six subjects

Marks obtained by C in Maths are approximately what per cent of his total marks obtained in all the six subjects together ?