App Logo

No.1 PSC Learning App

1M+ Downloads
In an Examination a student scores four marks for every correct answer and loses one mark for every wrong answer. If he attempts all 75 questions and secures 125 marks. The number of questions he attempt correctly is.

A35

B40

C82

D46

Answer:

B. 40

Read Explanation:

Let the number of correct answer be x No of incorrect answer = 75 - x 4x - (75 - x) = 125 5x = 200 x = 40


Related Questions:

Six friends, K, L, M, N, O and P, are sitting around a circular table facing the centre of the table. O is second to the left of N. P is second to the right of K. M is to the immediate right of L. N and L are immediate neighbours. Who is sitting to the immediate right of P?
A, F, J, K, P and Q live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on till the topmost floor is numbered 6. Only three people live between Q and F, where Q lives below F. P lives on an odd numbered floor and immediately above Q. J lives on one of the floors below A and on one of the floors above K. How many people live above J?
40 കുട്ടികളുള്ള ക്ലാസ്സിൽ വിശ്വനാഥന്റെ റാങ്ക് മുന്നിൽ നിന്ന് 19-മതാണ്. അവസാനത്തുനിന്ന് വിശ്വനാഥന്റെ റാങ്ക് എത്ര ?
A, B, C, D, J, K and L are sitting around a circular table, facing the centre of the table. Only three people sit between K and A when counted from the left of K. Only three people sit between L and J when counted from the right of J. D sits to the immediate right of L. C is an immediate neighbour of J as well as A. Who sits to the second to the left of B?
Six friends Charu, Manu, Prakash, Pari, Varun and Vishal are sitting in a circle and facing the center. Prakash is to the immediate left of Pari. Only Varun is between Vishal and Pari. Only Vishal is between Charu and Varun. Who is to the immediate left of Manu?