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Browse complete papersIf Rs. 40,000 amounts to Rs. 69,120 in a years at 20% rate of interest compounded annually, then n =
5
4
3
2
Correct answer
5
If the solution of the simultaneous linear equations 2x - 3y + 4 = 0 and 3x - 2y - 4 = 0 is x = a and y = b, then
a = b
a = 2b
2a = b
a + b = 0
Correct answer
a = b
If the simultaneous linear equations 3x + 2y - 50 and kx - 2y + 7 = 0 have no solution, then
k ≠ -3
k = 3
k = -3
k = -2
Correct answer
k ≠ -3
A girl has only 5 rupee coins and 10 rupee coins in her kiddy bank. If there are 40 coins all together in the bank amounting to Rs. 260, then the number of 5 rupee coins in it is
12
14
26
28
Correct answer
12
\(31\ \text{of}\ 13 + 17 - 19 × 69 ÷ \overline{29 - 6} =\)
363
397
1023
693
Correct answer
363
In an arithmetic progression, if the third term is 13 and the fifth term is 23, then the sum of its first 35 terms is
6160
1540
4610
3080
Correct answer
6160
In a geometric progression, if the first term is 5, common ratio is 3 and the sum of the first n terms is 1820, then n =
6
5
8
7
Correct answer
6
If two dice are thrown simultaneously, then the probability of getting a prime number on one die and a composite number on the other die is
\(\frac{1}{3}\)
\(\frac{2}{3}\)
\(\frac{1}{6}\)
\(\frac{1}{4}\)
Correct answer
\(\frac{1}{3}\)
If a card is drawn at random from a pack of 52 playing cards, then the probability of getting a face card is
\(\frac{1}{13}\)
\(\frac{3}{13}\)
\(\frac{2}{13}\)
\(\frac{4}{13}\)
Correct answer
\(\frac{1}{13}\)
There are 32 marbles in an urn, in which some are red and the rest are green. If a marble is drawn at random from the urn and the probability that it is red is \(\frac{3}{4}\), then the number of green marbles in the urn is
24
18
8
12
Correct answer
24