Question
The marks scored by a boy in three subjects are in the
ratio 4 : 5 : 6. Boy scored an overall aggregate of 70% in the exam. If the maximum marks in each subject are the same, in how many subjects did boy score more than 75% marks?Solution
Let the maximum marks in each subject be 100. ∴ Total score = 70% of (100 + 100 + 100) = 70% of (300) = 210 Also, 75% marks in a subject correspond to 75% of (100) = 75 Let a boy have scored 4x, 5x and 6x in the three subjects. ∴ 4x + 5x + 6x = 210 ∴ 15x = 210 i.e. x = 14 Hence, his marks in the three subjects are 56, 70 and 84. Hence, he has scored more than 75 in exactly one subject.
A statement is given followed by two possible reasons 1 and 2. Read the statement carefully and decide which of the two reasons given best describes the...
Match List-1. (Classical Dance Form) with List-II (State) and select the correct answer using the codes given below the lists:
Where can one find the Zonal Headquarters of East Central Railways?
Which of the following statements is/are correct about Open Market Operations?
I. It refers to the mechanism through whic...
Which one of the following does 'Nirguna Bhakti' refer to ?
The income ratio of Aman to Qureshi is 5:7. Both individuals save ₹900 each. If the ratio of their expenditures is 7:11, determine Qureshi's total exp...
According to the Indian constitution “Labour” is the subject matter which list?
Who was the only Female Alvar among 12 Alvars?
________ aid(s) in the emulsification of fat.
Which theory argues that population growth can lead to increased technological innovation and resource abundance?