RRB NTPC CBT-1 previous year question
In a class, there are 10 boys more than girls. Each girl has 3 pencils and each boy has 2 pencils with them. The total number of pencils in the class is 170. The ratio of girls to boys in the class is _____.
Asked in RRB NTPC 2026 — 15 June Shift 3 · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) 3:4
Let girls=g, boys=g+10. Given 3g+2(g+10)=170, so 5g=150, giving g=30 and boys=40. The ratio of girls to boys = 30:40 = 3:4.
हिंदी में प्रश्न
एक कक्षा में, लड़कियों की तुलना में 10 लड़के अधिक हैं। प्रत्येक लड़की के पास 3 पेंसिलें और प्रत्येक लड़के के पास 2 पेंसिलें el कक्षा में पेंसिलों की कुल संख्या 170 है। कक्षा में लड़कियों और लड़कों का अनुपात
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 3:4 ह पर
मान लें लड़कियाँ=g, लड़के=g+10। दिया गया है 3g+2(g+10)=170, अतः 5g=150, जिससे g=30 और लड़के=40। लड़कियों और लड़कों का अनुपात = 30:40 = 3:4 है।
More solved Quantitative Aptitude questions
- A, B, and C can complete a work in 10, 12, and 15 days, respectively. A and B work together for 3 days, after which A withdraws. B and C…
- A hollow spherical shell is made of a metal of density 39 g/cm3. Its internal and external radii are 12 cm and 13 cm, respectively. What…
- A train passes two persons walking in the same direction in which the train is going. These persons are walking at the rates of 2 km/hr…
- The marked price of a refrigerator is ₹4,884. The shopkeeper allows a discount of 10% and gains 8%. If no discount is allowed, his gain…
- A student scores an average of 72 marks in 5 subjects and 84 marks in 3 additional subjects. The overall average marks is
- A marker costs ₹43. A store offers “Buy 5, Get 2 Free”. What is the effective price per marker? [Give your answer in ₹, correct to two…