Question
Mira is 40% more efficient than Priya, and Neha is 10%
more efficient than Mira. If Neha and Mira together can do a piece of work in 15 days, in how many days will Priya complete the same work alone?Solution
ATQ, Let efficiency of Priya be βxβ units per day. Ratio of efficiency of Priya, Mira, and Neha = x: 1.4x: 1.54x = 100:140:154 Let total amount of work = (140 + 154) Γ 15 = 4440 units Time taken by Priya to complete the work = 4440/100 = 44.4 days
What value should come in place of (?) question mark in the given expression.
17 Γ 15 β 96 Γ· 8 + 6Β² = ?
Evaluate:Β 144 Γ· 12 Γ 6 + 35 β 4Β²
What will come in the place of question mark (?) in the given expression?
21 Γ 18 + ? β 19 Γ 15 = 25 Γ 24
2916 ÷ 54 = ? + 27
β324 + β484 + 63 = ?2Β
What will come in the place of question mark (?) in the given expression?
{(2/15) + (12/25)} of 375 + 190 = ?% of 375
- What will come in place of the question mark (?) in the following questions?
100β[20+4Γ5]=? (72 × 52 + 1555 )/(79+60) = 2000 ÷ ?
72 Γ 2 = ? + 104 β 14
672 ÷ 28 × 24 + 363 – 309 =?