Download App

MATHS BLANKS [1 Marks Each]

Ratio and Proportion · Gujarat Board (GSEB) STD 7 (GSEB - English Medium). 3 questions.

Questions

BLANKS [1 Marks Each]

Take a timed test

3 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
If A : B = 5 : 7 and B : C = 6 : 11, then A : B : C = ______.
Answer
If A : B = 5 : 7 and B : C = 6 : 11, then A : B : C = 30 : 42 : 77.
Solution:
$\frac{\text{A}}{\text{B}}=\frac{5\times6}{7\times6}=\frac{30}{47}$
$\Rightarrow\frac{\text{B}}{\text{C}}=\frac{6\times7}{11\times7}=\frac{42}{77}$
$\Rightarrow\text{A : B :}=30:42:77$
View full question & answer→
Question 21 Mark
If A : B = 2 : 3 and B : C = 4 : 5, then C : A = ______.
Answer
If A : B = 2 : 3 and B : C = 4 : 5, then C : A = 15 : 8.
Solution:
$\frac{\text{A}}{\text{C}}=\frac{\text{A}}{\text{B}}\times\frac{\text{B}}{\text{C}}$
$=\frac{2}{3}\times\frac{4}{5}=\frac{8}{15}$
$\therefore\text{C : A}=15:8$
View full question & answer→
Question 31 Mark
If 16% of A = 20% of B, then A : B = _____.
Answer
If 16% of A = 20% of B, then A : B = 5 : 4.
Solution:
$\frac{16}{100}\text{ A}=\frac{20}{100}\text{B}$
$\Rightarrow\frac{\text{A}}{\text{B}}=\frac{20}{16}=\frac{5}{4}$
View full question & answer→
Generate Paper FreeAll Ratio and Proportion topics
BLANKS [1 Marks Each] - MATHS STD 7 Questions - Vidyadip