Question

These questions are from the Chapter- Rational Number​

Answer 1

$\huge \fbox \green{❤Answer:}$

$\sf \colorbox{pink} {Ans.5}$

Given:

$\frac{ - 33}{6}$

Find:- Devided to get

$\frac{11}{18}$

$\huge \fbox \purple{Solution:}$

$Let \: Number \: is \: x$

$\sf \colorbox{god} {According to the Question}$

$⇒ \frac{ - 33}{6} \div x = \frac{11}{18} \: \: [ \frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c} ]$

$⇒ \frac{ - 33}{6} \times \frac{1}{x} = \frac{11}{8}$

$⇒ \frac{ - 33}{6x} = \frac{11}{18} \: \: \: \: \: \: \: \: [cross \: multiply]$

$⇒ - 33 \times 18 = 11 \times 6x$

$⇒x = \frac{ - 33 \times 18}{11 \times 16}$

$:x = - 297$

$\sf \colorbox{god} {Hence \: Required \: Number \: is = }$

$\frac{ - 297}{88}$

$\sf \colorbox{lightgreen} {Ans.6}$

Given: The weight of three Parcels are

$2 \frac{3}{4} \: kg , \: 1 \frac{5}{16} \: kg , \: \frac{7}{8} kg$

Find :- Their Total Weight

$\huge \fbox \pink{Solution: }$

$2 \frac{3}{4} + 1 \frac{5}{16} + \frac{7}{8}$

$= \frac{11}{4} + \frac{21}{16} + \frac{7}{8}$

$= \frac{44 + 21 + 14}{16}$

$= \frac{79}{16} \: kg$

$Hence \: Answer \: is \: \frac{79}{16} \: kg$

$\sf \colorbox{pink} {Ans.7}$

Given:

$side \: 8 \frac{3}{4} \: m$

Find:- Area

$\huge \fbox \red{Solution: }$

$Area =( \frac{35}{4} {)}^{2} \: {m}^{2}$

$= \frac{1225}{16} {m}^{2}$

Hence Area is

$= \frac{1225}{16} {m}^{2}$

$\\ \\ \\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸}$