1 .30 pens and 75 pencils altogether were purchased for ` 510. If the average price of a pencil was ` 2, what was the average price of a pen ?
A.  ` 9
B.  ` 10
C.  ` 11
D.  ` 12
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2 .A alone can complete a work in 18 days and B alone in 15 days. B alone worked at it for 10 days and then left the work. In how many more days, will A alone complete the remaining work ?
(A) 5 days
(B) 5$1\over2# days
(C) 6 days
(D) 8 days
A.  a
B.  b
C.  c
D.  d
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3 .Tapas works twice as fast as Mihir. If both of t hem together complete a work i n 12 days. Tapas alone can complete it in–
A.  15 days
B.  18 days
C.  20 days
D.  24 days
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4 .A sum of money becomes double in 3 years at compound interest compounded annually. At the same rate, in how many years will it become four times of itself ?
A.  4
B.  6
C.  6.4
D.  7.5
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5 .At some rate of simple interest, A lent ` 6000 to B for 2 years and ` 1500 to C for 4 years and received ` 900 as interest from both of them together. The rate of interest per annum was –
A.  5%
B.  6%
C.  8%
D.  10%
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6 .
A.  1000
B.  1800
C.  2000
D.  1900
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7 .The number of cycles produced in the 5 th week is –
A.  1400
B.  1300
C.  1440
D.  1600
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8 .Total number of cycles produced in five consecutive weeks is –
A.  5400
B.  5600
C.  5500
D.  7000
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9 .Find the ratio of cycles produced in fourth week and third week.
A.  9 : 10
B.  20 : 13
C.  13 : 10
D.  10 : 9
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10 .Find the difference of cycle produced in the second week and fourth week
A.  500
B.  400
C.  300
D.  200
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