Ques1 -: A shopkeeper cheats to the extent of 20% while buying as well as selling, byusing false weights. His total gain is
(A) 50%
(B) 45%
(C) 34%
(D) 44%
Ques2 -: If 8 men can reap 80 hectares in 24 days, then how many hectares can 36 men reap in 30 days?
(A) 350
(B) 400
(C) 425
(D) 450
Ques3 -: In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age B is -
(A) 32 years
(B) 36 years
(C) 39 years
(D) 40 years
Ques4 -: If the Standard deviation of a distribution is 9, what is the value of variance?
(A) 18
(B) 27
(C) 81
(D) 36
Ques5 Two tap A and B fill the tank in 15 hours and 20 hours, respectively, while tap C
empty the same tank in 25 hours. The three taps are opened together, but after ten hours, tap C is closed. How long will the entire tank be filled from now?
(A) After 12 hours
(B) After 10 hours
(C) After 4 hours
(D) After 2 hours
Ques6-: A car can finish a certain journey in 10 hours at the speed of 48 km. per hour. By how much should its speed be increased so that it may take only 8 hours to cover the same distance?
(A) 10 km. /hr.
(B) 12 km. /hr.
(C) 13 km. /hr.
(D) 14 km. /hr.
Ques7-: Two times the movement with the stream is equal to 3 times the movement in the opposite direction of the current. What is the proportion of movement in the still water of the boat and movement with the stream?
(A) 1 : 5
(B) 5 : 1
(C) 1 : 3
(D) 2 : 3
Ques8-: If a box contain 3 white cushions, 4 red cushions and 5 blue cushions, what is probability of selecting a white or blue cushions?
(A) 2/3
(B) 3/4
(C) 1/4
(D) 1/9
Ques9-: The area of the four walls of a room is 168 sq. unit. The area of the base of the
room is 48 sq. unit and perimeter of the base is 28 units. Find the height of the room.
เคเค เคเคฎเคฐे เคी เคाเคฐ เคฆीเคตाเคฐों เคा เค्เคทेเคค्เคฐเคซเคฒ 168 เคตเคฐ्เค เคเคाเค เคนै। เคे เคเคงाเคฐ เคा เค्เคทेเคค्เคฐเคซเคฒ เคเคฎเคฐा 48 เคตเคฐ्เค เคเคाเค เคนै เคเคฐ เคเคงाเคฐ เคा เคชเคฐिเคฎाเคช 28 เคเคाเค เคนै। เคเคฎเคฐे เคी เคँเคाเค เค्เคाเคค เคीเคिเค।
(A) 6 units
(B) 8 units
(C) 12 units
(D) 10 units
Ques10-: AB is a chord to a circle and TAP is the tangent to the circle at A. If ∠BAT
= 75°and ∠BAC = 45°, where C is a point on the circle, then ∠ABC is∶
(A) 750
(B) 450
(C) 600
(D) 1200
Answer key:
1. Sol. (A)
2. Sol. (D)
3. Sol. (C)
4. Sol. (C)
5. Sol. (D)
6. Sol. (B)
7. Sol. (B)
8. Sol. (A)
9. Sol. (A)
10. Sol. (C)
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MAHENDRA GURU