Question
The ratio of income and expenditure of a man is 6 : 5,
respectively. If the income and expenditure of the man are increased by 25% and 10% respectively, then find the percentage increase in the savings of the man.Solution
Let the income of the man be Rs. β6xβ So, expenditure = Rs. β5xβ So, savings = 6x β 5x = Rs. βxβ New income = 6x Γ 1.25 = Rs. β7.5xβ New expenditure = 5x Γ 1.1 = Rs. β5.5xβ New savings = 7.5x β 5.5x = Rs. β2xβ So, required percentage increase
= {(2x β x) / x} Γ 100
= 100%
1000Γ· 250 = ( 3β? Γ β1444) Γ· ( 3β512 Γ β361)
What value should come in the place of (?) in the following questions?
(7/9) of (15/4) of 480 = ?
√3970 × √730- √2400 =?
(12% of 1250 + 85% of 400) x 10 = ?2
25% of (?) + (1/4)of 5600 = 2500 β 20% of 1940Β
(√2704 x 55)/(245 + 120) =?
?% of 500 = 674 - 18% of 800
18 Γ 15 + 86 β 58 =? + 38
Β
4(1/3) × 2(11/14) = 50% of ? + 86/11
(8.4 × 6.5 ×2.52 )/(5.04 ×3.25 ×2.1) = ?