RRB NTPC CBT-1 previous year questionThe sides of a rectangular field are 55 m and 70 m long. Its area is equal to the area of a circular field. What is the perimeter (in m) of the circular field? (Take ) 1257
The sides of a rectangular field are 55 m and 70 m long. Its area is equal to the area of a circular field. What is the perimeter (in m) of the circular field? (Take ) 1257 
Asked in RRB NTPC 2026 — 14 June Shift 2 · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) 220
Area of rectangle = 55 x 70 = 3850 sq m, equal to the circle's area. Using pi=22/7, r2 = 3850/(22/7) = 1225 so r = 35 m, and circumference = 2*(22/7)*35 = 220 m.
हिंदी में प्रश्न
एक आयताकार मैदान की भुजाओं की लंबाई 55 m और 70 m Vl इसका क्षेत्रफल एक वृत्तीय मैदान के क्षेत्रफल के बराबर Fl वृत्तीय मैदान का परिमाप (m में) कितना है? (7 = — मानिए) 
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 197
आयत का क्षेत्रफल = 55 x 70 = 3850 वर्ग मीटर, जो वृत्त के क्षेत्रफल के बराबर है। pi=22/7 लेने पर r2 = 3850/(22/7) = 1225 अर्थात r = 35 मीटर, और परिधि = 2*(22/7)*35 = 220 मीटर होगी।
More solved Quantitative Aptitude questions
- A and B can do a piece of work in 12 days and 18 days, respectively. Both work for 2 days and then A leaves. How long (in days) will B…
- A sum of ₹10,000 is invested at a compound interest rate of 10% per annum for 2 years, compounded annually. What is the compound interest…
- Meena and her mother visit a shop. The shopkeeper tells them that the price of 5 identical dresses is ₹4,955. Meena buys 9 such dresses…
- Evaluate 223 + (-18)3 + (-4)3
- A train overtakes two runners moving in the same direction at speeds of 5 km/h and 7 km/h, passing them completely in 18 seconds and 20…
- The marked price of an article is ₹500. During a sale, its price is reduced to ₹450. What is the percentage decrease in price?