0
Q:

# Mr. Gupta borrowed a sum of money on compound interest. What will be the amount to be repaid if he is repaying the entire amount at the end of 2 years?I. The rate of interest is 5 p.c.p.a.II. Simple interest fetched on the same amount in one year is Rs. 600.III. The amount borrowed is 10 times the simple interest in 2 years.

 A) I only B) III only C) I or II only D) .II and Either I or III only

Answer:   D) .II and Either I or III only

Explanation:

I. gives, Rate = 5% p.a.

II. gives, S.I. for 1 year = Rs. 600.

III. gives, sum = 10 x (S.I. for 2 years).

Now I, and II give the sum.

For this sum, C.I. and hence amount can be obtained.

Thus, III is redundant.

Again, II gives S.I. for 2 years = Rs. (600 x 2) = Rs. 1200.

Now, from III, Sum = Rs. (10 x 1200) = Rs . 12000.

Thus, Rate =

100 x 1200

= 5% p.a.

2 x 12000

Thus, C.I. for 2 years and therefore, amount can be obtained.

Thus, I is redundant.

Hence, I or III redundant.

Q:

The usual average speed of a car on a particular stretch of road is 75 km/hr. On a particular day, the average speed was 12% less than the usual, as a result of which the time taken was I S minutes more.

How long is the stretch of road, in kilometres?

 A) 155 B) 176 C) 165 D) 150

Explanation:

1 116
Q:

In an examination in which the full marks were 500, A scored 25% more marks than B, B scored 60% more marks than C and C scored 20% less marks than D. IfA scored 80% marks, then the percentage of marks obtained by is:

 A) 65% B) 60% C) 50% D) 54%

Explanation:

0 87
Q:

Shaan has a total of ₹5,500 with him. He buys product ‘Z’ at ₹5,000 from this sum and then sells it to another person, thus making a profit of 15% onit. With all the money he has now, he buys product ‘X’ andthen sells it to another person making a profit of 25% onit.

What is the total money Shaan has now?

 A) ₹7,812.50 B) ₹7,815.50 C) ₹6,325.50 D) ₹7,187.50

Explanation:

0 1139
Q:

then what is the value of frac{1 + sin theta + cos theta}{1 - sin theta + cos theta}

 A) 54\frac{5}{4} B) 32\frac{3}{2} C) 34\frac{3}{4} D) 52\frac{5}{2}

Explanation:

0 48
Q:

Solve the below equation.

 A) 94 B) 65 C) 214 D) 215

Explanation:

0 217
Q:

If A lies in third quadrant, and $20tanA=2120 tan A = 21$, then the value of $5sinA-2cosA4cosA-57sinAfrac{5 sin A - 2 cos A}{4 cos A - frac{5}{7} sin A}$

 A) -6529\frac{-65}{29} B) 15\frac{1}{5} C) 529\frac{5}{29} D) 1312\frac{13}{12}

Explanation:

2 96
Q:

The sum of the squares of 3 natural numbers is 1029, and they are in the proportion 1 : 2 : 4. The difference between greatest number and smallest number is:

 A) 15 B) 21 C) 31 D) 18

Explanation:

0 125
Q:

Two circles of radii 8 cm and 6 cm touch each other externally. The length of the direct common tangent is:

 A) 13.86 B) 20 C) 10.12 D) 24