An electrician can be paid under two schemes as given below: I: Rs. 500 and Rs. 70 per hour. II: Rs. 120 per hour. If the job takes `x` hours, for what values of `x` does the i. Scheme I ii. Scheme II give the electrician the better wages.

A plumber can be paid under two schemes as given below: I Rs. 600 and Rs 50 per hour II. Rs. 170 per hour. If the job takes n hours, for wht values of n does the scheme I gives the plumber the better wages?

A man earns Rs. 25 per hour. How much does he earn in x hours?

Sriram invested equal sums of money in two schemes. Under scheme X , the compound interest rate was 10 p.c.p.a. and under scheme Y , the compound interest rate was 12 p.c.p.a. The interest after 2 years on the sum invested in scheme X was Rs 63. How much is the interest earned under scheme Y after 2 years? (a) Rs 70.56 (b) Rs 76.32 (c) Rs 79.0272 (d) Rs Cannot be determined (e) None of these

A man sold a TV set for Rs 5000 and gained one-fourth of its cost price.Find: i. the cost price ii. the profit per cent.

A printing company prints two types of magzines A and B. The company earns Rs. 20 and Rs. 30 on each copy of magazines A and B respectively. The magazine A requires 2 hours on machine I, 4 hours on Machine II and 2 hours machine III. Magazine B requires 3 hours on machine I, 5 hours on machine II and 3 hours on machine III. Machines I,II, III are available for 35, 50 and 70 hours per week respectively. Formulate the LPP to determine weekly production of magazines A and B, so that the total profit is maximum

A man mixes two types of rice (X and Y) and sells the mixture at the rate of Rs. 17 per kg. Find his profit percentage. (i) The rate of X is Rs. 20 per kg (ii) The rate of Y is Rs. 13 per kg.

The share of FV Rs 100 is at a discount of Rs 9 (i) what is the MV of th share ? (ii) if the brokerage is rs R s1 per share then what is the investment to purchase 1 share ?

To promote making of toilets for women, an organisation tried to generate awareness attempt (i) house calls (ii) letters, and (iii) announcements. The cost for each mode per attempt is given below: (i) Rs 50 (ii) Rs 20 (iii) Rs 40 The number of attempts made in three villages X , Y and Z are given below: (i) (ii) (iii) X 400 300 100 Y 300 250 75 Z 500 400 150 Find the total cost incurred by the organisation for three villages separately, using matrices.