Question
She is good in mathematics, but weak at
physics. The given sentence contains an error. Select the option that correctly rectifies the error.Solution
The correct preposition is "at" when referring to being proficient in a subject, and "in" when referring to being weak in a subject. Therefore, the correct sentence is "She is good at mathematics, but weak in physics."
(225 + 125) ÷ 7 + 250 = ? + 20% of 800
32 × 3 (54 – 15) + 186 ÷ 3 ÷ 2 – (21)² = ?
193. 69 + 200.09 – 512.96 + 312.09 =?
I. x² + 3x – 154 = 0
II. y² + 5y – 126 = 0
33 + ? = 40% of 1420
[4(1/2) + 4(1/3)] × 12 – 42 = ?2
What value should come in the place of (?) in the following questions?
222 + 322 – 508 = ? * 5
181/8 + 51/4 – 63/8 = ? + 9/2
(106 + 14)/15 = ?/5
3.55 + 1.05 + 2.5 × 13 – 12% of 12.5 = ?