Jammu and Kashmir Circle Mathematics Answer Key Exam held on 18.05.2014

Jammu and Kashmir Circle Mathematics Answer Key Exam held on 18.05.2014

Thanks to Norboo Thinless (Question Paper Shared)

Part - B (Mathematics)

                     

Jammu and Kashmir Circle -19 Booklet Series :B

Q 26. The average temperature of the first 3 days of a week is 26.5 C and that of the next 3 days is 29 C. If the weekly average is 27.4 C, what is the temperature of the day:

A. 26.8 C

B. 24.8 C

C.25.3 C

D.25. C

ANS:C

Q 27 Find the Volume of a cube where longest diagonal is 2_/3 cm:

A. 8cm3

B. 4 cm3

C. 16 cm3

D. 2 cm3

ANS:A

Q 28 A sells a bicycle to B at a profit of 20% B sells to C at a profit of 25%. If C pays Rs. 225 for it, what did a pay for it?

A. 175 B. 125 C. 200 D.150

ANS:D

Q 29. Two train of 400 meters and 475 meters in length run at the speed of 45km/h and X km/h respectively in opposite directions on parallel tracks. The time taken by them to across each other is 42 seconds, then find the value of X:

A.28km/h B.30km/h C. 32km/h D. 30km/h

ANS:D

Q 30. X borrowed Rs. 500 from Y@ 5% p.a. simple interest. If X paid Rs.50 as interest, what was the tenure of this loan?

A. 2years B. 212 C. 3 years D. 4 years

ANS:D

Q 31 At an examination 65% of the total candidates were successful. The total number of failures was 420. Determine the number of students who appeared for the exam:

A. 567 B. 639 C. 1000 D. 1200

ANS:D

Q. 32 A sum of Rs. 550 was taken as loan. This is to be paid back in two equal installments. If the rate of interest be 20% compounded annually, then the value of each installment is:

A. Rs. 421 B. 396 C. 360 D. 350

Q .33 A man cycles at the rate of 15.6km/h. How many meters does he cover in 2 minutes?

A. 31.2 B. 260 C. 520 D. 5200

ANS:B

Q. 34 The value of ((.013) ^2+(.007) ^2)/((.013) ^2-.13×.007+(.007) ^2 )

A. .006

B. .02

C. .0091

D. .00185

Q. 35 If 3712 of a number is 900, then 6212% of the number will be:

A. 1200 B. 1350 C. 1500 D. 450

ANS:C

Q. 36 A and B can do a piece of work in 18 days; B and C in 24 days, C and A in 36 days. In how many days can they do it all working together:

A. 12 B. 13 C. 16 D. 26

ANS:C

Q. 37 The average price per kg of rice at 10 different places was Rs. 4085. After a week, the price per kg was increased by 20 paisa at 3 places and decreased by 10 paisa at one place. The new average of price per kg is:

A. 4.88 B. 4.86 C. 4.90 D. 5.35

ANS:C

Q. 38 The average marks of 30 students in a class is 45. While checking two errors were noticed. after correction, one student got 45 marks more and other 15 marks less. What is the corrected average?

A. 47 B. 48. C. 46 D. 50

ANS:C

Q. 39 In a group of 15 persons, 7 persons have studies German, 8 have studies French and 3 persons have not studies either. How many persons of these have studies both German and French?

A. 4 B. 6 C. 5 D. 3

Q. 40 If the radius of a right circular cylinder is decreased by 50% and its height is increased by 60% its volume will be decreased by:

A. 60% B. 50% C. 55% D. None of these

ANS:A

Q 41 Given that √(1225 ) =35; then √(12.25 )+√0.1225+√0.0 01225 is equal to:

A. .385

B. 3.885

C. 38.85

D. 3.585

ANS:B

Q. 42 Ramu spend 75% of his income. His income is increased by 20% he has increased his Expenditure by 10%. His saving are increased by:

A.40% B. 50% C. 30% D. 25%

ANS:D

Q. 43 If the length of a rectangle is increased by 20% and width of the same rectangle decreased by 20% then the area of the rectangle:

A. Decreases by 20%

B. Decreases by 4%

C. Is unchanged

D. Increases by 20%

ANS:B

Q. 44 If a clock started at noon then the angle traversed by the hour hand at 5.45 PM will be

A. 112 ½*
B. 120*
C. 172 ½*
D. none of these
ANS:C

Q. 45 The sum of two numbers is 42 and their product is 437. Then the absolute difference between the numbers is:

A. 3 B. 4 C. 5 D. 7
ANS:B

Q. 46 A does 80% of a work in 20 days. He then calls in B and together they finish the remaining work in 3 days. How long B alone would take to do the whole work:

A.23 days B. 37 days C.37 1/2days D. 40 days


Q. 47 If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:

A. 4 days B. 5 days C. 6days D. 3 days
ANS:A

Q.48 The ratio between the speeds of two train is 7:8. If the second train runs 400 km in 4 hours, then the speed of the first train is;

70km/h B. 75km/h C. 84km/ h D. 87.5km/h
ANS:D

Q. 49 When the circumference of a circle decreases from 3π to π, its area decreases by:

A. 1623 % B. 6623 % C.888/9 % D.1212 %
ANS:B