Maths Questions Series #5
A motor car finishes a journey in 10 hours. The first half at 21 km/hr. and the rest at 24 km/hr. Find the distance?
(A) 220 km
(B) 224 km
(C) 220 km
(D) 232 km
Correct Answer : B
A train 270 meters long is running at a speed of 36 km per hour then it will cross a bridge of length 180 meters in :
(A) 40 sec
(B) 45 sec
(C) 50 sec
(D) 35 sec
Correct Answer : B
Explanation :
According to the question the total distance will be (270+180)=450 meter
the speed of train will be in 10 m/sec
so that we knew that D=Speed Χ Time
450=10ΧTime
then Time will be 45 sec
A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?
(A) 50 Km/hr
(B) 52 Km/hr
(C) 54 Km/hr
(D) 56 Km/hr
Correct Answer : C
A person invested a total sum of Rs 7900 in three different schemes of simple interest at 3% , 5% and 8% per annum. At the end of one year he got same interest in all three schemes. What is the money (in Rs) invested at 3 %?
(A) 4000
(B) 5600
(C) 2900
(D) 3500
Correct Answer : A
Daljit lent Rs.10800 to Jabir for 3 years and Rs.7500 to Kabir for 2 years on simple interest at the same rate of interest and received Rs.1422 in all from both of them as interest . The rate of interest per annum is
(A) 3%
(B) 4.5%
(C) 3.5%
(D) 4%
Correct Answer : A
In how many different ways can the letters of the word ‘CREAM’ be arranged?
(A) 720
(B) 240
(C) 360
(D) 504
(E) None of these
Correct Answer : E
In how many different ways can the letters of the word ‘STRESS’ be arranged?
(A) 360
(B) 240
(C) 720
(D) 120
(E) None of these
Correct Answer : D
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Vikram Singh
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