Question
Four houses are available in a locality. Four persons
apply for the houses. Each applies for one house without consulting others. The probability that all the four apply for the same house is :Solution
One person can select one house out of 4 = 4C1 ways = 4 Hence, three persons can select one house out of 4 in 4 x 4 x 4 = 64 Therefore, probability that all thre apply for the same house is 1/16
More ESIC Part B Questions
1220 ÷ 61 ÷ 5 + 450 of 20% - 70 = √ ?
15 × 35 ÷7 + 60% of 300 =?
(5.6 + 2.4 + 13.8 – 2.8) × 5 = ? × (12.5 – 7.5)
6269 + 0.25 × 444 + 0.8 × 200 = ? × 15
...The income of a person is Rs.15000 and his expenditure is Rs.12000. In the next year his income and expenditure is increased by 8% and 13% respectively....
15848 ÷ 4 – 793 × 6 + 3628 = 3 × ?
36% of 250 + 26 ÷ 2 × ? = 207
[(1245 ÷ 9) ÷ 12] × 540 = ?2 – 175
Simplify-
x + 3(y + x – 2) – (x + y).
Simplify the following expression:
(164-1)/17×15× (28+1)