Question
The probability that Neha passes the exam is (3/7) and
the probability that Arjun fails the exam is (4/9). If both give the exam, find the probability that both have the same result.Solution
Probability that Neha fails = 1 - (3/7) = (4/7)
Probability that Arjun passes = 1 - (4/9) = (5/9)
Required probability = (3/7) Γ (5/9) + (4/7) Γ (4/9)
= (15/63) + (16/63) = (31/63)
- What will come in the place of question mark (?) in the given expression?
[{(224 + 14 Γ 23) β 187} Γ (672 Γ· 28 β ?)] = 1795 (β529 + 63 /8)% of 800 = ?% of 250
Simplify the following expressions and choose the correct option.
18Β² + (27 Γ· 3) Γ 11 β 250 = ?
(γ(0.4)γ^(1/3)Β Γ γ(1/64)γ^(1/4)Β Γ γ16γ^(1/6)Β Γ γ(0.256)γ^(2/3))/(γ(0.16)γ^(2/3)Β Γ 4^(-1/2)Β Γγ1024γ^(-1/4) ) = ?
1.55 + 2.05 + 1.5 × 11 – 20% of 10.5 = ?
(75 + 0.25 Γ 10) Γ 4 = ?2 - 14
What will come in the place of question mark (?) in the given expression?
(40% of ? Γ 43 ) β 232 = 751Β
84367 + 65441 + 32645 – 21145 – 10769 = ?
If 960 Γ· 16 + 875 Γ· 25 - x + 28 Γ 6 = 1350 Γ· 18 Γ 222 Γ· 37, then the value of x is:
