Find real questions from previous competitive exam papers with answers and solutions.
Browse complete papersThe interest on a sum at a certain rate of interest compounded yearly for two years is Rs. 5,500. If the simple interest on the same sum, at the same rate of interest for 4 years is Rs. 10,000 then the rate of interest is
20%
25%
10%
15%
Correct answer
20%
If α and β satisfy the equations 3x + 7y = 5 and 11x + 5y = 7 then 31 (α + β) =
12
29
31
1
Correct answer
12
If the system of equations 2x + 3y = 4 and 6x + 9y = k has no solution, then the value (s) of k is (are)
12
ll real values except 6
all real values except 4
all real values except 12
Correct answer
12
If the system of equations 7x - y - 5 = 0 and ax - 5y - 25 = 0 has infinite number of solutions, then for k \(\in\) IR the general solution (x, y) of the system is
(k + 5)/7, k
\((k,\frac{a}{7})\)
k, (k - 5)/7
\((7k - \frac{a}{7}k)\)
Correct answer
(k + 5)/7, k
If the sum of three consecutive numbers in a geometric progression is 26 and the sum of their squares is 364, then the product of those numbers is
216
125
343
512
Correct answer
216
Which of the following numbers belong to the series 5, 13, 21, 29, 37, ...
2018
2005
2010
2017
Correct answer
2018
\(10 + 4;of;3 \div \left[ {;8 \times 3;\left{ {;12 \div 6;\left( {25 - 12 \times 3 + ;\overline {8 - 4 \times 3} ;} \right)} \right}} \right] = ;\)
\(12 \frac{15}{47}\)
\(2\frac{2}{11}\)
\(9\frac{59}{60}\)
\(\frac{35}{73}\)
Correct answer
\(12 \frac{15}{47}\)
If 3 unbiased coins are tossed simultaneously, then the probability of getting atmost one head is
\(\frac{1}{8}\)
\(\frac{1}{4}\)
\(\frac{3}{8}\)
\(\frac{1}{2}\)
Correct answer
\(\frac{1}{8}\)
When two unbiased dice are rolled, the probability of getting prime numbers on both the dice is
\(\frac{1}{6}\)
\(\frac{4}{9}\)
\(\frac{2}{9}\)
\(\frac{1}{4}\)
Correct answer
\(\frac{1}{6}\)
If a card is drawn at random from a well shuffled pack of 52 playing cards, then the probability of getting a red coloured face card is
\(\frac{2}{{13}}\)
\(\frac{1}{{13}}\)
\(\frac{3}{{26}}\)
\(\frac{3}{{52}}\)
Correct answer
\(\frac{2}{{13}}\)