6. A car owner buys petrol at ₹ 17, ₹ 19 and ₹ 20 per litre for three consecutive years. Compute the average cost per litre, fi he spends ₹ 6460 per year.
₹ 18.49
₹ 18.58
₹ 19.20
₹ 21.66
7. The ratio of the ages of man and his wife is 4: 3. After 4 years, this ratio will be 9: 7. If at the time of their marriage, the ratio of their ages was 5: 3, then how many years ago were they married ?
8
10
12
15
8. Due to a reduction of 6\({1 \over 4}\)% in the price of sugar, a man is able to buy 1 kg more for ₹ 120. Find the original and reduced rate of sugar.
₹ 7, ₹ 8.50
₹ 8, ₹ 7.50
₹ 6, ₹ 7.50
₹ 6, ₹ 6.50
9. In a shop, 80% of the articles are sold at a profit of 10% and the remaining at a loss of 40%. What is the overall profit/loss ?
10% profit
10% loss
5% loss
No profit or loss
10. Two partners invested ₹125000 and ₹85000 respectively in a business. They distribute 60% of the profit equally and decide to distribute the remaining 40% as the interest on their capitals. If one partner received ₹3000 more than the other, the total profit is :
₹ 42250
₹ 39375
₹ 38840
₹ 36575