Std 8 maths ch 7 || ભાગ=૧ || standard 8 maths ch 7 in gujarati || Class 8 maths ch 7 || Child Guruji

Study the following arrangement carefully and answer the questions given below: 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7 How many such seven are there in the given series each of which is immediately preceded by 9 and also immediately followed by 8? 1) None 2 ) One 3)Two 4)Three 5)More than three

Study the following arrangement carefully and answer the questions given below: 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7 How many such odd numbers are there in the given series each of which is immediately preceded by an even number? 1) Five 2 ) Seven 3)Nine 4)Eleven 5)None of these

Find the variance and standard deviation of the scores 7 , 8 , 9 , 10 and 16.

In the class of 100 students, the number of students passed in English is 46, in Maths is 46 and in Commerce is 58. The number who passed in English and Maths is 16, Maths and commerce is 24 and English and commerce is 26, and the number who passed in all subjects is 7. Find the number of the students who failed in all subjects.

There are 8 math's books and 6 science books in a almirah. In how many wayscan 4 books of each subject be selected?

In the following number series, how many times three numbers 3, 7, and 8 appear together in such a way, that the prime number comes in the middle and rest of the two numbers are arranged on either sides? "8 3 7 8 7 3 2 7 8 3 5 3 6 8 7 5 3 2 71 3 7 8 7 3 3 7 8 8 7 3 7 "

Study the following arrangement carefully and answer the questions given below: 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7 How many such numbers are there in the given series each of which when subtracted from the following number, has a difference of 2 ? 1) Three 2 ) Four 3)Five 4)Nine 5)None of these

Class 12 Maths | Chapter 7 | Integrals | Important Questions | Quick Revision| Part 2

In a school, students must take at least one of these subjects: Maths, Physics or Chemistry. In a group of 50 students, 7 take all three subjects. 9 take Physics and Chemistry only, 8 take Maths and Physics only and 5 take Maths and Chemistry only. Of these 50 students, x take Maths only, x take Physics only and x + 3 take Chemistry only. Draw Venn diagram, find x, and hence find the number taking Maths.