Ques1-Suraj earned ₹ 10280/- last month. This month his earning increased by 10%. How much amount did he earn this month?
a) 11208/-
b) 11308/-
c) 11309/-
d) 11409/-
Ques2-If the height of a cylinder is 11 cm and the curved surface area is 968 cm^2, then the radius of the cylinder will be
a) 10 cm
b) 11 cm
c) 14 cm
d) 8 cm
Ques3-A sum was put at simple interest at a certain rate for 2 years. Had it been put at 3% higher rate, it would have fetched Rs. 300 more. Find the sum.
a) Rs. 5,000
b) Rs. 4,000
c) Rs. 10,000
d) Rs. 1,000
Q.4. P and Q can do a piece of work in 24 and 30 days respectively. Both started the work and worked for 6 days. Then Q leaves the work and R joins and the remaining work is completed by P and R together in 11 days. Find the days in which R alone can do the work.
(A) 80
(B) 100
(C) 120
(D) 130
Q.5. There are three friends (John, Ben and Sam). John is 50% as efficient as Ben and Sam is 50% as efficient as John. Ben completes 50% of the work in 5 days and then takes help of his other two friends. In how many more days will they complete the work?
(A) 8/11 days
(B) 9/17 days
(C) 20/7 days
(D) 17/8 days
Q.6. Two pipes can fill the cistern in 10 hr and 12 hr respectively, while the third pipe can empty it in 20 hr. Simultaneously, if all the pipes are opened then the cistern will be filled in
a)7.5 hr
b)8 hr
c)5 hr
d)10 hr
Q.7. A completes 40% of a task in 10 days and then takes the help of B and C. B is 50% as efficient as A is and C is 50% as efficient as B is. In how many more days will they complete the work?
A) 13 1/3
B) 8 4/7
C) 10 2/3
D) 9
Q.8. Jeni can do a job in 30 days, Nove in 45 days and Joel in 60 days. If Jeni is helped by Nove and Joel every 3rd day, how long will it take for them to complete the job?
A) 7 1/5
B) 8
C) 9 ¾
D) 10
Q.10. Ram and Ravi can do a job together in 8 days. Ram is 11/8 times as efficient as Ravi. The same job can be done by Ravi alone in
A) 21
B) 25
C) 19
D) 16
Answer key:
1. Sol. (B)
2. Sol. (C)
3. Sol. (A)
4. Sol. (C)
5. Sol. (C)
6. Sol. (A)
7. Sol. (B)
8. Sol. (A)
9. Sol. (C)
10. Sol. (D)
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MAHENDRA GURU