Question : Rohan scored twice as many marks in English as he did in Science. His total marks in English, Science, and Mathematics are 126. If the ratio of his marks in English and Mathematics is 2 : 3, his marks in English are:
Option 1: 63
Option 2: 20
Option 3: 21
Option 4: 42
Latest: SSC CGL Tier 1 Result 2024 Out | SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL Tier 1 Scorecard 2024 Released | SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: 42
Solution : Let us denote marks of Rohan in English, Science, and Mathematics be E, S, and M, respectively. Given, $\text{E=2S}$ And, $\text{E + S + M} = 126$ The ratio of his marks in English and Mathematics is 2 : 3. From $\text{E + S + M} = 126$, we can get $\text{2S + S + M} = 126$ [Using $\text{E = 2S}$] ⇒ $3\text{S} + \text{M} = 126$----------(1) Now, $\frac{\text{E}}{\text{M}} = \frac{2}{3}$ $\frac{\text{2S}}{\text{M}}=\frac{2}{3}$ ⇒ $\text{M} = \text{3S}$ Putting this value in (1), we get, $\text{3S + 3S}=126$ ⇒ $\text{6S}=126$ ⇒ $\text{S}= 21$ $\therefore\text{E}=\text{2S}=2\times21 = 42$ Hence, the correct answer is 42.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : Ram got twice as many marks in English as in Science. His total marks in English, Science, and Maths are 180. If the ratio of his marks in English and Maths is 2 : 3, what are his marks in Science?
Question : Direction: Nikhil is 8 years younger than his brother Rohan. How old will Rohan be when he is twice as old as Nikhil?
Question : The radii of two cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3. The ratio of their volumes is _______.
Question : A tradesman marks his goods 20% above his cost price. If he allows his customer a 20% discount on the marked price, how much profit or loss does he make, if any:
Question : Direction: Rohan walks a distance of 3 km towards the north. Then he turns to his left and walks for 2 kilometres. He again turns left and walks for 3 kilometres. At this point, he turns to his left and walks for 3 kilometres. How many kilometres is he from
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile