Subject
Bank Exam
Topic
এনআরবিসি ব্যাংক (টিএও) - ২৬.১০.২০২৪
In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, then the present age of B is -
In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, then the present age of B is -
ক)
19 yearsখ)
29 yearsগ)
39 yearsঘ)
49 yearsExplanation
মনেকরি, B এর বর্তমান বয়স = x বছর A এর বর্তমান বয়স = x + 9 বছর 10 বছর পূর্বে, B এর বয়স ছিল = (x - 10) বছর A এর বয়স ছিল = (x + 9 - 10) = (x - 1) বছর 10 বছর পরে, B এর বয়স হবে = (x + 10) বছর A এর বয়স হবে = (x + 9 + 10) = (x + 19) বছর প্রশ্নমতে, x + 19 = 2(x - 10) ⇒ x + 19 = 2x - 20 ⇒ 19 + 20 = 2x - x ⇒ 39 = x ∴ x = 39 বছর অতএব, B এর বর্তমান বয়স 39 বছর।Related questions
Which of the following resembles MOCK : IMITATE?Which of the following countries is the closest competitor of Bangladesh in the global RMG business?Which of the following is the opposite of the word INHIBIT?1 kilogram is equal to-The term ALACRITY is same as-Qatar is located in-REPTILE is to LIZARD as FLOWER is to-Which of the following is the hardest rock?