Question
A number increases by 30 when 60% of it is added to
itself. What is the final value after addition?Solution
ATQ,
Let the number be βxβ
According to the question,
0.60x = 30
β x = 30 / 0.60 = 50
Required number = 50 + 30 = 80
(12 Γ 48 Γ· 6) Γ· 2 + ? = 106
82% of 400 + √(?) = 130% of 600 - 85% of 400
√10404 + √9604 - β1728 - β42875 = ?
28(4/5) + 52(1/2) × 8(2/7) - 11(1/5) = ? + 6(1/5)
(750 / 15 Γ 15 + 152 + 20% of 125) = ?3
6% of 520 + 5% of 620 = ?
Evaluate: (936 Γ· 12) Γ (225 Γ· 15) β (144 Γ· 12) Γ 18
Simplify: 0.004 Γ 0.5
25% of 240 + β? = (2/3) Γ 120
1200% of 18 + β1600 + 62 = ?2 + (90 of 0.4)