Question
A is trying to break a bulb by throwing balls at it. If
he hits the bulb 4 times in every 10 throws and bulb breaks 3 times out of 20 hits, then find the probability of A breaking the bulb.Solution
Probability of A hitting the bulb = 4/10 = 2/5 Probability of the bulb being broke on getting hit = 3/20 Probability of A breaking the bulb = (2/5) × (3/20) = 3/50
What will come in place of the question mark (?) in the following series?
1528, 1416, 1204, ?, 480, -32
143 Â Â Â Â 119Â Â Â Â 107Â Â Â Â 101Â Â Â Â Â 98Â Â Â Â ?
96 89 ? 90 94 91
...What value should come in the place of (?) in the following number series?
19, 235, 260, 324, 333, ?
What will come in place of the question mark (?) in the following series?
305...
In each of the following number series, one term is missing. Find the missing term.
3, 5, 20, 24, 144, 150, ?
1029, 1030, 1039, 1064, ?, 1194
75, 80, 95, ?, 155, 200
What will come in place of the question mark (?) in the following series?
1515, 184, ?, 455, 967, 624
7 29 61 ? 211 349
...
