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1 .
A boat goes downstream at the rate of 9 kmph and upstream at the rate of 6 kmph. Find the speed of current.
1.5 kmph
2 kmph
7.5 kmph
4.5 kmph
None of these
2 .
A person sells half of his goods at 20% profit and remaining half at 30% profit. What is his overall gain percent in the whole transaction ?
30%
25%
50%
35%
None of these
3 .
A dice is thrown twi ce. What is the probability of getting a sum of 7 from both the throws ?
$5\over 18$
$1\over 18$
$1\over 9$
$1\over 6$
$5\over 36$
4 .
An aeroplane flies with an average speed of 756 km/hr. A helicopter takes 48 hours to cover twice the distance covered by aeroplane in 9 hours. How much distance will the helicopter cover in 18 hours ?
5014 km
5140 km
5130 km
5103 km
None of these
5 .
The circumference of a semi-circle of area 1925 sq. cm is equal to the breadth of a rectangle. If the length of the rectangle is equal to the perimeter of a square of side 48 cm. What is the peri meter of the rectangle ?
734 cm
754 cm
745 cm
Cannot be determined
None of these
6 . In each question below, a number series is given in which one number is wrong. Find out the wrong number
$484\,\,\, 240 \,\,\,120 \,\,\,57 \,\,\,26.5 \,\,\,11.25 \,\,\,3.625$
240
120
57
26.5
11.25
7 . In each question below, a number series is given in which one number is wrong. Find out the wrong number
$3\,\,\, 5 \,\,\,13 \,\,\,43 \,\,\,176 \,\,\,891 \,\,\,5353$
5
13
43
176
891
8 . In each question below, a number series is given in which one number is wrong. Find out the wrong number
$6\,\,\, 7 \,\,\,16 \,\,\,41 \,\,\,90 \,\,\,154 \,\,\,292$
7
16
41
90
154
9 . In each question below, a number series is given in which one number is wrong. Find out the wrong number
$5\,\,\, 7 \,\,\,16 \,\,\,57 \,\,\,244 \,\,\,1245 \,\,\,7506$
7
16
57
244
1245
10 . In each question below, a number series is given in which one number is wrong. Find out the wrong number
$4\,\,\, 2.5 \,\,\,3.5 \,\,\,6.5 \,\,\,15.5 \,\,\,41.25 \,\,\,126.75$
2.5
3.5
6.5
15.5
41.25