1. If the numerator of a fraction is increased by 20% and the denominator is diminished by 10%, then the value of the fraction is 16/21. The original fraction is (2)
- (1) 3/5
- (2) 4 /7
- (3) 2/3
- (4) 5/7
- (5) None of these
2. A trader has 600 kg of rice, a part of which he sells at 15% profit and the remaining quantity at 20% loss. On the whole, he incurs an overall loss of 6%. What is the quantity of rice he sold at 20% loss ? (4)
- (1) 250 kg
- (2) 320 kg
- (3) 420 kg
- (4) 360 kg
- (5) 480 kg
3. Srinivasan invests two equal amounts in two banks giving 10% and 12% rate of interest respectively. At the end of year the interest earned is Rs. 1650. Find the sum invested in each bank? (3)
- (1)Rs. 8500
- (2)Rs. 15000
- (3)Rs. 7500
- (4)Rs. 17000
- (5) None of these
4. The average height of 16 students is 142 cm. If the height of the teacher is included, the average height increases by 1 cm. The height of the teacher is (2)
- (1) 156 cm
- (2) 159 cm
- (3) 158 cm
- (4) 157 cm
- (5) 159.5 cm
5. 16 men and 12 women can complete a work in 8 days. If 20 men can complete the same work in 16 days, in how many days 16 women can complete the same piece of work ? (3)
- (1) 12
- (2) 8
- (3) 10
- (4) 15
- (5) 20