1. Two pipes A and B can fill a tank independently in 10 hours and 15 hours respectively, while pipe C can empty it in 30 hours. All pipes are kept open for 6 hours after which pipes B and C are closed. In what time now onwards would the tank get full?
(a) 6 hours
(b) 2 hours
(c) 2.5 hours
(d) 3 hours
2.Two men can complete a piece of work in 6 days. 2 women can complete the same piece of work in 9 days, whereas 3 children can complete the same piece of work in 8 days. 3 women and 4 children worked together for 1 day. If only men were to finish the remaining work in 1 day, how many total men would be required?
(a) 4
(b) 8
(c) 6
(d) 2
3. In a school, there are 3600 students. The ratio of boys to girls is 4 : 5. If twenty percent of the boys and sixty percent of the girls like to play hockey, then how many students do not like to play hockey?
(a) 1520
(b) 1250
(c) 2008
(d) None of these
4. 42 binders can bind 2800 books in 30 days. How many binders will be required to bind 1600 books in 20 days?
(a) 18
(b) 36
(c) 32
(d) 24
5.Two men or three women can complete a piece of work in 4 days. In how many days can 1 woman and 1 man together complete the same piece of work?
(a) 6 days
(b) 24/5 days
(c) 12/1.75 days
(d) Cannot be determined
6.The curved surface area and the total surface area of a cylinder are in the ratio 1 : 2. If the total surface area of the right cylinder is 616 cm2, then its volume is :
(a) 1078 cm3
(b) 1232 cm3
(c) 1848 cm3
(d) 1078 cm3
7.A, B, C and D purchase a gift worth Rs. 60/-. A pays 1/3 of what others are paying, B pays 1/3rd of what others are paying and C pays 1/4th of what others are paying. What is the amount paid by D ?
(a) 15
(b) 16
(c) 18
(d) 14
8. Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?
(a) Rs. 15
(b) Rs. 15.70
(c) Rs. 19.70
(d) Rs. 20
Q . 9 Find angle PQR
10.Arvind purchased a wrist watch with 30% discount on the labelled price. He sold it with 40% profit on the price he bought. What was his percent loss on the labelled price?
(a) 8%
(b) 2%
(c) 6%
(d) 4%
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