Day 398: JEE Mains Maths
5 questions. Try each one first, then open its answer.
Question 1
Differential Equations. Asked once: 27 Jan 2024 (same type asked 13 times) See all 13 of this type
167If is the solution curve of the differential equation , and the slope of the curve is never zero, then the value of equals:Tap an option to check your answer.
Question 2
Statistics. Asked once: 25 Jan 2023 (same type asked 13 times) See all 13 of this type
66The mean and variance of the marks obtained by the students in a test are 10 and 4 respectively. Later, the marks of one of the students is increased from 8 to 12 . If the new mean of the marks is 10.2, then their new variance is equal to:Tap an option to check your answer.
Question 3
Relations and Functions. Asked once: 28 Jul 2022 (same type asked 13 times) See all 13 of this type
68For , consider a relation on given by . The relation is an equivalence relation if and only if:Tap an option to check your answer.
Question 4
Probability. Asked once: 8 Apr 2023 (same type asked 12 times) See all 12 of this type
68In a bolt factory, machines and manufacture respectively and of the total bolts. Of their output 3, 4 and 2 percent are respectively defective bolts. A bolt is drawn at random from the product. If the bolt drawn is found the defective, then the probability that it is manufactured by the machine isTap an option to check your answer.
Question 5
Permutations and Combinations. Asked once: 26 Jul 2022 (same type asked 12 times) See all 12 of this type
173Numbers are to be formed between 1000 and 3000, which are divisible by 4 , using the digits and 6 without repetition of digits. Then the total number of such numbers is