STMicroelectronics: Numerical Aptitude Questions (Paper 2 of 12)
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A person covered some distance in 12 hours. He covered half the distance by rail @ 75 km per hour and the rest by car @ 45 km/hr. The total distance covered by him was

450 km

675 km

337.5 km

1350 km
Answer: b


A sum of Rs. 427 is to be divided among A, B and C in such a way that 3 times A's share, 4 times B's share and 7 times C's share are all equal. The share of C is

Rs. 84

Rs. 147

Rs. 196

Rs. 240
Answer: a


A and B entered into a partnership investing Rs. 12000 and Rs. 9000 respectively. After 3 months C also joined them with a capital of Rs. 15000. The share of C in the half yearly profit of Rs. 9500 is

Rs. 3500

Rs. 3000

Rs. 2500

Rs. 4000
Answer: c


The ratio of income of A and B is 5: 4 and their expenditure is as 3: 2. If at the end of the year, each saves Rs. 800, then the income of A is

Rs. 1700

Rs. 1800

Rs. 2000

Rs. 2200
Answer: c


A and B can together finish a work in 30 days. They worked at it for 10 days together and then B left. The remaining work was done by A alone in 30 more days. B alone can finish the work in

48 days

60 days

75 days

90 days
Answer: d


The ratio between the curved surface area and the total surface area of a right circular cylinder is 1: 2. If the total surface is 616 sq. Cm, the volume of the cylinder is

1848 cm3

1232 cm3

1078 cm3

980 cm3
Answer: c


A circular wire of radius 42 cm is cut and bent in the form of a rectangle whose sides are in the ratio of 6: 5. The smaller side of the rectangle is

30 cm

60 cm

72 cm

108 cm
Answer: b


A man walking at the rate of 6km per hour crosses a square field diagonally in 9 seconds. The area of the field is

125 sq. Cm

112.5 sq. Cm

110 sq. Cm

100? 2 sq. m
Answer: b


A rectangular carpet has an area of 240 sq. Cm. If its diagonal and the longer side are together equal to five times the shorter side, the length of the carpet is

10 cm

24 cm

26 cm

27.5 cm
Answer: b


The ratio of 435: 25 is same as

4: 1

2: 1

7: 5

7: 10
Answer: a
