# If a sum of money at simple interest doubles itself in 6 years, it will become 4 times in

1.  14 years

2.  12 years

3.  18 years

4.  16 years

4

18 years

Explanation :
No Explanation available for this question

# A man gains 10% by selling a certain article for a certain price. If he sells it at double the price, the profit made is

1.  20%

2.  60%

3.  100%

4.  120%

4

120\%

Explanation :
No Explanation available for this question

# An electric iron was sold at a proift of 15%. Had it been sold for Rs 600, the profit would have been 20%. The former selling price of the electric iron is

1.  Rs 500

2.  Rs 540

3.  Rs 575

4.  Rs 600

4

Rs 575

Explanation :
No Explanation available for this question

# If the cost price of 12 tables is equal to selling price of 16 tables, the loss per cent is

1.  15%

2.   20%

3.  25%

4.  30%

4

25\%

Explanation :
No Explanation available for this question

# A man sells 2 horses at the same price, on one he makes a profit of 10% and on the other he makes a loss of 10%. On the whole he

1.  makes no profit no loss

2.  makes a profit of 1%

3.  suffers a loss of 1%

4.  suffers a loss of 2%

4

suffers a loss of 1\%

Explanation :
No Explanation available for this question

# Rahim buys 3 kg mangoes for Rs 21 and sells them at 5 kg for Rs 50. To earn Rs 102 as profit, the mangoes to be sold by him should be

1.  34 kg

2.  52 kg

3.  26 kg

4.  32 kg

4

34 kg

Explanation :
No Explanation available for this question

# The difference between the circumference and radius of a circle is 37 cm. (use π = 22/7)  The diameter of the circle is

1.  7 cm

2.  14 cm

3.  226/7 cm

4.  37 cm

4

14 cm

Explanation :
No Explanation available for this question

# The area of the largest triangle that can be inscribed in a semi-circle of radius r is

1.  r2

2.  r3

3.  2r2

4.  2r3

4

r2

Explanation :
No Explanation available for this question

# The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to

1.  the volume of the box

2.  twice the volume of the box

3.  the square of the volume of the box

4.  cube root of its volume

4

the square of the volume of the box

Explanation :
No Explanation available for this question

1.  9 m

2.  12 m

3.  18 m

4.  36 m

4