eduhilfe Latest Questions

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

In a potato race, a bucket is placed at the starting point, which is 5 m from the first potato, and the other potatoes are placed 3 m apart in a straight line. There are ten potatoes in the line (see in Fig). A competitor starts from the bucket, picks up the nearest potato, runs back with it, drops it in the bucket, runs back to pick up the next potato, runs to the bucket to drop it in, and she continues in the same way until all the potatoes are in the bucket. What is the total distance the competitor has to run?

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

200 logs are stacked in the following manner: 20 logs in the bottom row, 19 in the next row, 18 in the row next to it and so on (see Fig.). In how many rows are the 200 logs placed and how many logs are in the top row?

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

A spiral is made up of successive semicircles, with centres alternately at A and B, starting with centre at A, of radii 0.5 cm, 1.0 cm, 1.5 cm, 2.0 cm, . . . as shown in Fig. What is the total length of such a spiral made up of thirteen consecutive semicircles?

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

In a school, students thought of planting trees in and around the school to reduce air pollution. It was decided that the number of trees, that each section of each class will plant, will be the same as the class, in which they are studying, e.g., a section of Class I will plant 1 tree, a section of Class II will plant 2 trees and so on till Class XII. There are three sections of each class. How many trees will be planted by the students?

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

A sum of Rs 700 is to be used to give seven cash prizes to students of a school for their overall academic performance. If each prize is Rs 20 less than its preceding prize, find the value of each of the prizes.

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

A contract on construction job specifies a penalty for delay of completion beyond a certain date as follows: Rs 200 for the first day, Rs 250 for the second day, Rs 300 for the third day, etc., the penalty for each succeeding day being Rs 50 more than for the preceding day. How much money the contractor has to pay as penalty, if he has delayed the work by 30 days?

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

Find the sum of the odd numbers between 0 and 50.

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

Find the sum of the first 15 multiples of 8.

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

Find the sum of the first 40 positive integers divisible by 6.

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert

• 0

eduhilfe

Asked: June 9, 2020In: NCERT 10th Maths

If the sum of the first n terms of an AP is , what is the first term (that is S1)? What is the sum of first two terms? What is the second term? Similarly, find the 3rd, the 10th and the nth terms.

• 0

arithmetic progressionsexercise 5.3 (ncert class 10th maths)ncert