Price of a cricket ball is - a-ba2-a b- Value of a and b in two consecutive years is given in the following table- array - c - c - WlineYear-llhline 2015 - a-3- b-211 hline 2016 - a-4- b-3 1 hinearray What is the increase in the price of the cricket ball in rupees-A- - 13B- 25C- - 15D- - 23

The correct option is A ₹ nbsp;13 Price of the ball = ₹ (a b)(a^2+ab) In 2015, price =(3 2)(3^2+3 × 2) =1 × (9+6)=₹ 15 In 2016, price =(4 3)(4^2+4 × 3) = ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Mathematics

Number Patterns/Relations

Price of a cr...

Question

Price of a cricket ball is $₹ (a - b) (a^{2} + a b)$ . Value of a and b in two consecutive years is given in the following table.
$\begin{matrix} Y e a r 2015 & a = 3, b = 2 2016 & a = 4, b = 3 \end{matrix}$
What is the increase in the price of the cricket ball in rupees?

₹ 13

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

₹ 25

No worries! We‘ve got your back. Try BYJU‘S free classes today!

₹ 15

No worries! We‘ve got your back. Try BYJU‘S free classes today!

₹ 23

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
₹ 13

Price of the ball
$= ₹ (a - b) (a^{2} + a b)$

In 2015, price
$= (3 - 2) (3^{2} + 3 \times 2) = 1 \times (9 + 6) = ₹ 15$

In 2016, price
$= (4 - 3) (4^{2} + 4 \times 3) = 1 \times (16 + 12) = ₹ 28$

Increase in the price
$= 28 - 15 = ₹ 13$

Suggest Corrections

Similar questions

Q. Price of a cricket ball is Rs.

(a - b) (a^{2} + a b)

. Value of a and b in two consecutive years is given in the following table.

\begin{matrix} Y e a r 2015 & a = 3, b = 2 2016 & a = 4, b = 3 \end{matrix}

What is the increase in the price of the cricket ball in rupees?

Q. Construct an index for the year 2016 taking 2011 as base by simple average of price relatives method

Items	P	Q	R	S
Price (in ₹)	30	50	70	90
Price (in ₹)	40	60	80	100

Q. Calculate price index number by weighted average of price relative method.

Commodity	Price Base Year (in ₹)	Price current year ( in ₹)	Quantity Base year (in Kg)
A	6.0	8.0	40
B	3.0	3.2	80
C	2.0	3.0	2

Q. Using the following data and 2008 as the base period, compute simple aggregative price indices for the two fuels.

Item	Producer's Price (in ₹)
Item	2008	2009	2010
Coal ( ₹)	5	3	4
Crude oil ( ₹)	2	3	4

Find the mean salary of 60 workers of a factory from the following table:
$\begin{matrix} S a l a r y (i n ₹) & N u m b e r o f w o r k e r s 3000 & 16 4000 & 12 5000 & 10 6000 & 8 7000 & 6 8000 & 4 9000 & 3 10000 & 1 T o t a l & 60 \end{matrix}$

Join BYJU'S Learning Program

Price of a cricket ball is ₹(a−b)(a2+ab). Value of a and b in two consecutive years is given in the following table. Year2015a=3,b=22016a=4,b=3 What is the increase in the price of the cricket ball in rupees?

The correct option is A ₹ 13 Price of the ball =₹(a−b)(a2+ab) In 2015, price =(3−2)(32+3×2)=1×(9+6)=₹15 In 2016, price =(4−3)(42+4×3)=1×(16+12)=₹28 Increase in the price =28–15=₹13

Price of a cricket ball is $₹ (a - b) (a^{2} + a b)$ . Value of a and b in two consecutive years is given in the following table.
$\begin{matrix} Y e a r 2015 & a = 3, b = 2 2016 & a = 4, b = 3 \end{matrix}$
What is the increase in the price of the cricket ball in rupees?

The correct option is A
₹ 13

Price of the ball
$= ₹ (a - b) (a^{2} + a b)$

In 2015, price
$= (3 - 2) (3^{2} + 3 \times 2) = 1 \times (9 + 6) = ₹ 15$

In 2016, price
$= (4 - 3) (4^{2} + 4 \times 3) = 1 \times (16 + 12) = ₹ 28$

Increase in the price
$= 28 - 15 = ₹ 13$