SSC Government Jobs Exams Numerical Ability Probability

What is the probability of selecting a prime number from 1,2,3,... 10 ?

Options
1) 25
2) 15
3) 35
4) 17

Read Solution (Total 1)

2,3,5,7 are prime numbers
required probability=4/10=2/5
8 years agoHelpfull: Yes(0) No(0)

SSC Other Question

A rocket, initially at rest, is fired vertically with
an upward acceleration of 10 m/s2. At an altitude
of 0.50 km, the engine of the rocket cuts off. What
is the maximum altitude it achieves from ground ?
(A) 1.9 km (B) 1.3 km
(C) 1.6 km (D) 1.0 km
One card is randomly drawn from a pack of 52 cards. What is the probability that the card drawn is a face card(Jack, Queen or King)

Options
1) 1/13
2) 2/13
3) 3/13
4) 4/13