21. Successive discount of 30%, 20% and 10% is equivalent to :

(A) 50.4%

(B) 49.6%

(C) 50%

(D) 60%

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22. In an examination 40% students failed in Mathematics, 30% failed in English and 10% failed in both. The percentage of students who passed in both subjects is –

(A) 20%

(B) 40%

(C) 60%

(D) 15%

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23. If the marked price of a mobile is ₹ 500 and it is sold at ₹ 340 then, the percentage discount is –

(A) 22%

(B) 28%

(C) 32%

(D) 36%

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24. Ravi bought a shirt and saved ₹ 20, when a discount of 25% was given. What was the price of the shirt before the discount?

(A) ₹ 75

(B) ₹ 80

(C) ₹ 90

(D) ₹ 95

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25. Two numbers are respectively 20% and 32% less than a third number. What percent is the second number of the first number ?

(A) 12%

(B) 112%

(C) 85%

(D) 117 11/17%

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26. After allowing a discount of 20% on the marked price of an article a shopkeeper makes a profit of 25%. What is the cost price of an article if the marked price is ₹ 250 ?

(A) ₹ 100

(B) ₹ 160

(C) ₹ 200

(D) ₹ 225

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27. George can do a certain work in 28 days. If George is 40% less efficient than Thomas, then in how many days Thomas alone can do the same work ?

(A) 20 days

(B) 24 days

(C) 26 days

(D) 32 days

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28. A is twice as fast as B and B is thrice as fast as C is. The journey covered by C in 54 minutes will be covered by B in –

(A) 9 min

(B) 18 min

(C) 27 min

(D) 38 min

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29. A 250m long train crosses a pillar in 12 sec. Find the speed of train –

(A) 68 km/hour

(B) 72 km/hour

(C) 75 km/hour

(D) 78 km/hour

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30. ‘A’ goes 10 km distance with average speed of 6 km/hour while rest 20 km with an average speed of 15 km/hour. What is the average speed of ‘A’ during the whole journey ?

(A) 8 km/hr.

(B) 10 km/hr.

(C) 12 km/hr.

(D) 13 km/hr.

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31. Ram can cover a certain distance in 1 hour 24 minutes by covering two third of the distance at 4 kmph and rest at 5 kmph. Find the total distance.

(A) 5 km

(B) 6 km

(C) 4 km

(D) 8 km

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32. In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed was reduced by 200 km/hr and time of flight increased by 30 minutes. The original duration of the flight was –

(A) 1:00 hour

(B) 1:30 hours

(C) 2:00 hours

(D) 2:30 hours

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33. Pankaj is walking at a speed of 5 km/hr. After every km he takes rest for 10 minutes. How much time will he take to cover a distance of 25 km ?

(A) 4 hours

(B) 5 hours

(C) 8 hours

(D) 9 hours

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34. A car leaves Agra at 6 am and reaches Lucknow at 11 am. Another car leaves Lucknow at 8 am and reaches Agra at 3 pm. At what time do the two cars meet?

(A) 9:15 am

(B) 9:30 am

(C) 9:45 am

(D) 10:00 am

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35. A train 125 m long crosses a tree in 10 seconds. The speed of the train is –

(A) 12.5 km/hr

(B) 25 km/hr

(C) 35 km/hr

(D) 45 km/hr

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36. A car travels 67 km in 1.5 hours and 97 km in next 2.5 hours. The average speed of the car is –

(A) 41 km/hr

(B) 82 km/hr.

(C) 85.75 km/hr

(D) 97 km/hr

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37. If a man can row at the rate of 3.5 km/hr in still water and his rate against the current is 2.5 km/hr, then the man’s rate along the current is –

(A) 4 km/hr

(B) 4.5 km/hr

(C) 5 km/hr

(D) 5.5 km/hr

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38. Find the missing term in the following series :

5 ¼, 4 ¾, 5 ½, 4 ½, 5 ¾, ?

(A) 4 ¼

(B) 6 ½

(C) 4 4/3

(D) 6 ¼

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39. The prime factors of 7429 are –

(A) 7, 13, 19

(B) 9, 13, 17

(C) 17, 19, 23

(D) 13, 17, 19

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40. In how many years does a sum of money become four times at the simple interest rate of 20% per annum ?

(A) 20

(B) 8

(C) 12

(D) 15

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