when arranged in descending order is
The fractions $$\frac{7}{11},\frac{16}{20},\frac{21}{22}$$ when arranged in descending order is
The fractions $$\frac{7}{11},\frac{16}{20},\frac{21}{22}$$ when arranged in descending order is
pavan ? Jul 2 '2017 at 12:56
Answer is \(\frac{21}{22}>\frac{16}{20}>\frac{7}{11}\)
Explanation:
\(\frac{7}{11} vs \frac{16}{20} => \frac{140 \text{ vs }176}{11 \times 20}=> \frac{7}{11}<\frac{16}{20} \)
further
\(\frac{16}{20}vs\frac{21}{22} => \frac{352 \text{ vs } 420}{20 \times 22}=>\frac{16}{20}<\frac{21}{22}\)
\(=>\) Descending order is
\(\frac{21}{22}>\frac{16}{20}>\frac{7}{11}\)
Who invented telephone ?
Albert Einsten was a famous
eranna ? Jul 2 '2017 at 12:19
Answer is Physicist
Explanation:
Albert Eienstin was or famous physicist. He gave the famous Relativity and the equivalency of Energy and matter i.e. \(E =mc^2\)
The steam engine was invented by
The radius of a right circular cone is 3 cm and its height is 4 cm. The curved surface of the cone will be
balakrishna ? Jul 2 '2017 at 11:27
Answer is \(15 \pi \text{ sq.cm }\)
Explanation:
Slant height of the cone \(l = \sqrt{r^2+h^2}\)
= \(\sqrt{3^2+4^2}\)
= \(\sqrt{9+16}\)
=\(\sqrt{25}=5 \text { cm}\)
\(\therefore\) Area of the curved surface
= \(\pi rl \)
\(=\pi \times3\times5\)
\(= 15 \pi \text{ sq.cm}\)
The sides of a triangle are in the ratio 3:5:7 and its perimeter is 30 cm. The length of the greatest side of the triangle in cm is
ranjith ? Jul 2 '2017 at 11:7
Answer is 14
Explanation:
Let the sides of the triangle be 3x,5x and 7x units.
According to the questions
3x+5x+7x=30
=> 15x = 30
\(x = \frac{30}{15} =2\)
Largest side = 7x
\(= 7 \times 2\)
=14
A horse is tied to a peg hammered at one of the corner of a rectangular grass field of 40 m by 24 m by a rope 14 m long. Over how much area of the field can the horse graze ?
ramesh ? Jul 2 '2017 at 10:55
Answer is 154 sq m
Explanation:
Area of part grazed by horse = \(\frac{1}{4}\)
\(\therefore\) Required Area = \(\frac{1}{4}\pi r^2\)
\(= \frac{1}{4}*(3.14)*(14^2) = 153.86 \)