**Grade 7 math worksheet 3 answers :**

Here we are going to see solutions of 7th grade math worksheet 3.

**Question 1 :**

A water tank has steps inside it.One monkey is sitting on the topmost step(i.e the first step). The water is at the ninth step. He jumps 3 steps down and then jumps 2 steps up.In how many jumps will he reach the water level?

(A) 13 jumps (B) 15 jumps (C) 11 jumps

**Solution :**

For every time it jumps 3 steps down and goes 2 steps up.

Number of steps coming down |
Number of steps going back |

1 3 5 7 9 11 |
2 4 6 8 10 |

He will reach ninth steps in 11 jumps.

Let us look into the solution of next problem on "Grade 7 math worksheet 3 answers".

**Question 2 :**

James goes 20 km towards east from a point A to the point B. From B, he moves 30 km towards along the same road. If the distance towards east represents a positive integer then, how will you represent the distance traveled towards west?

(A) 5 (B) 8 (C) 10

**Solution :**

A is the initial point,

Since James moves towards east 20 km

It can be taken as +20

James moves towards west 30 km

It can be taken as -30

Distance between initial point and final point

-30 + 20 = -10 km

Hence James moves towards west 10 km

Let us look into the solution of next problem on "Grade 7 math worksheet 3 answers".

**Question 3 :**

Express 200 grams in kg.

(A) 0.2 kg (B) 0.5 kg (C) 1 kg

**Solution :**

1 kg = 1000 grams

In order to convert grams to kg, we have to divide 200 grams by 1000.

= 200/1000

= 0.2 kg

**Question 4 :**

James studies for 4 hours, 5 hours and 3 hours respectively on three consecutive days. How many hours does he study on an average?

(A) 4 hours (B) 8 hours (C) 3 hours

**Solution :**

Average number of hours he studies = (4 + 5 + 3)/3

= 12/3

= 4 hours

**Question 5 :**

Read the bar graph which shows the number of books sold by a bookstore during five consecutive years and answer the following question.in which year were about 450 books sold?

(A) 1989 (B) 1990 (C) 1991

**Solution :**

From the above bar graph, we come to know that the bookshop has sold about 450 books in the year 1990

**Question 6 :**

The sum of three times a number and 11 is 32. Determine the number.

(A) 7 (B) 3 (C) 5

**Solution :**

Let "x" be the required number

3x + 11 = 32

Subtract by 11 on both sides, we get

3x = 32 - 11

3x = 21

Divide by 3 on both sides,

x = 21/3 = 7

Hence the required number is 7.

**Question 7 :**

In the triangle ABC find the angle x?

**(A) 100° (B) 70° (C) 50°**

**Solution :**

**Sum of interior angles in a triangle is = 180****°**

<A + <B + <C = **180****°**

**x + 50 + 60 = 180**

**x + 110 = 180**

**x = 180 - 110**

**x = 70****°**

**Question 8 :**

Convert the given decimal 0.75 as percent.

(A) 35% (B) 27% (C) 75%

**Solution :**

In order to convert 0.75 as percentage, we have to multiply and divide 0.75 by 100.

0.75 = 0.75 x (100/100)

= 75/100 = 75%

**Question 9 :**

A school team won 6 games this year against 4 games won the last year. what is the percent increase?

(A) 50 (B) 25 (C) 80

**Solution :**

Number of games won in the last year = 4

Number of games won in this year = 6

Increased number of winnings = 6 - 4 = 2

Percent increase = (2/4) x 100

= (1/2) 100

= 50 %

**Question 10 :**

The area of a square and a rectangle are equal. If the side of the square is 40 cm and the width of the rectangle is 25 cm, determine the length of the rectangle.

(A) 50 cm (B) 64 cm (C) 30 cm

**Solution :**

Given :

Area of square = Area of rectangle

Side length of square = 40 cm

Width of rectangle = 25 cm

a^{2} = length x width

(40)^{2} = length x 25

length = 1600/25

= 64 cm

After having gone through the stuff given above, we hope that the students would have understood "Grade 7 math worksheet 3 answers".

Apart from the stuff given above, if you want to know more about "Grade 7 math worksheet 3 answers", please click here

Apart from the stuff "Grade 7 math worksheet 3 answers", if you need any other stuff in math, please use our google custom search here.

HTML Comment Box is loading comments...

**WORD PROBLEMS**

**HCF and LCM word problems**

**Word problems on simple equations **

**Word problems on linear equations **

**Word problems on quadratic equations**

**Area and perimeter word problems**

**Word problems on direct variation and inverse variation **

**Word problems on comparing rates**

**Converting customary units word problems **

**Converting metric units word problems**

**Word problems on simple interest**

**Word problems on compound interest**

**Word problems on types of angles **

**Complementary and supplementary angles word problems**

**Markup and markdown word problems **

**Word problems on mixed fractrions**

**One step equation word problems**

**Linear inequalities word problems**

**Ratio and proportion word problems**

**Word problems on sets and venn diagrams**

**Pythagorean theorem word problems**

**Percent of a number word problems**

**Word problems on constant speed**

**Word problems on average speed **

**Word problems on sum of the angles of a triangle is 180 degree**

**OTHER TOPICS **

**Time, speed and distance shortcuts**

**Ratio and proportion shortcuts**

**Domain and range of rational functions**

**Domain and range of rational functions with holes**

**Graphing rational functions with holes**

**Converting repeating decimals in to fractions**

**Decimal representation of rational numbers**

**Finding square root using long division**

**L.C.M method to solve time and work problems**

**Translating the word problems in to algebraic expressions**

**Remainder when 2 power 256 is divided by 17**

**Remainder when 17 power 23 is divided by 16**

**Sum of all three digit numbers divisible by 6**

**Sum of all three digit numbers divisible by 7**

**Sum of all three digit numbers divisible by 8**

**Sum of all three digit numbers formed using 1, 3, 4**

**Sum of all three four digit numbers formed with non zero digits**