Home
Class 10
MATHS
A person continuously places 3 marbles i...

A person continuously places 3 marbles in first box, 5 in second box,7 in third box, etc. The number of marbles that he places in sixteenth box is:

A

66

B

33

C

31

D

35

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSIONS

    OSWAAL PUBLICATION|Exercise VERY SHORT ANSWER TYPE QUESTION|8 Videos

  • ARITHMETIC PROGRESSIONS

    OSWAAL PUBLICATION|Exercise SHORT ANSWER TYPE QUESTION|15 Videos

  • AREAS RELATED TO CIRCLES

    OSWAAL PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS - I|20 Videos

  • CIRCLES

    OSWAAL PUBLICATION|Exercise TEXTBOOK CORNER (EXERCISE 4.2)|13 Videos

Similar Questions

Explore conceptually related problems

There are 10 boxes on a table. Ramu places 4 marbles in the first box, 7 marbles in the second box, 10 marbles in the third box and so on. Find the total number of marbles placed in all the boxes.

There are 6 red and 8 green balls in a bag. 5 balls are drawn at random and placed in a red box. The remaining balls are placed in a green box. What is the probability that the number of red balls in the green box plus the number of green balls in the red box is not a prime number?

A box contains tickets numbered 1 to 20. 3 tickets are drawn from the box with replacement. The probability that the largest number on the tickets is 7, is

A box contains 6 red marbles numbers from 1 through 6 and 4 white annd odd numbered .

There are four balls of different colours and four boxes of colours same as those of the balls. The number of ways in which the balls, one in each box, could be placed such that a ball does not got to box of its own colour own colour , is :

The number of ways in which 5 identical balls can be kept in 10 identical boxes, if not more, than one can go into a box, is

Na, Mg, Al and P belong to 3^(rd) period but are placed in first, second, thirteenth and fifteenth group. Number of shells occupied in Mg is three. What is the number of occupied shells in Na, Al and P. Give reasons for your answer.

Read the following passage and answer the questions given at the end. A game booth at Diwali fair involves using a spinnerr first. Then if the spinner stops on an even number the player is allowed to pick a marble from a box. The spinner and the marbles in the box are represented in figure. prizes are given, when black marble is picked. shweta plays the game once. i] What is the probability that she will be allowed to pick a marble from the box? ii} Suppose she is allowed to pick a marble from the box, what is the probability of getting a prize, when it is given that the box contains 20 balls out of which 6 are Black?

A box contains o red marbles number from 1 through 6 and 4 white marbles 12 through 15 .Find the probability that a marble drawn at random is white and old number :