Percentage

1. What percent is 70 of 280? A)75% B)50% C)25% D)None of these Answer : Option C Explanation: 70/280 = 1/4 1/4 × 100 = 25 % 2. If p = A% of B and q = B% of A, then which of the following is true? A)p is greater than q B)If A is smaller than B, then p is greater than q C)p is smaller than q D)None of these Answer : Option D Explanation: x% of y=[A/100xB] y% of x=[B/100xA] =>p = q. 3. In a class 47 students are present out of 50, then how many percentage of students present in class. A)94% B)89% C)3% D)None of these Answer : Option A Explanation: = 47/50 students are present = (47/50 × 100) % students are present = 94 % students are present 4. An alloy contains 26 % of copper. What quantity of alloy is required to get 260 g of copper? A)None of these B)900g C)880g D)1000g Answer : Option D Explanation: Let the quantity of alloy required = m g Then 26 % of m =260g ⇒ 26/100 × m = 260 g ⇒ m = (260 × 100)/26 g ⇒ m = 26000/26 g ⇒ m = 1000g 5. 270 candidates appeared for an examination, of which 252 passed. The pass percentage is : A)(97 + 1/3 )% B)(93 + 1/3 )% C)(98 + 1/3) % D)(91 + 1/3)% Answer : Option B Explanation: Pass percentage = (252/270x100)%=(280/3)%=(93+1/3)%

« 1 2 »