Question
116*2/3% of 18600 + 666*2/3% of 1290 = 457*1/7% of 1750
+ 555*5/9% of 3150 + ? What value should come in place of the question-mark (?) in the following questions:Solution
Value of 100% = 1 116*2/3% = 100% + 16*2/3% = 1 + 1/6 = 7/6 666*2/3% = 600% + 66*2/3% = 6 + 2/3 = 20/3 457*1/7% = 400% + 57*1/7% = 4 + 4/7 = 32/7 555*5/9% = 500% + 55*5/9% = 5 + 5/9 = 50/9 Now,  116*2/3% of 18600 + 666*2/3% of 1290= 457*1/7% of 1750 + 555*5/9% of 3150 + ? 7/6 × 18600 + 20/3 × 1290= 32/7 × 1750+ 50/9 × 3150+ ? 21700 + 8600= 8000 + 17500 + ? ? = 4800
In ∆ABC, AD = DB , DE is parallel to BC, and the area of ∆ABC is 24 cm2. What is the area of ∆ADE in cm2 ?
In a triangle PQR, ST is drawn parallel to side QR. If PS = 8 cm, QS = 5 cm and PT = 14 cm, then find PR.
What will be inradius of a right angle triangle whose base is 12 cm & height is 35 cm ?
The sides of a triangle are 10 cm, 17 cm, and 21 cm. Find the area of the triangle using Heron’s formula.
In a line PQ, is drawn parallel to BC, points P, Q being on AB and AC respectively. If AB = 3 AP, then what is the ratio of the area of t...
Find the difference between angle and its complement if the angle is two-seventh of its complement.
Two concentric circles of radii 10 cm and 6 cm are given. Find the length of the chord of the larger circle which touches the smaller circle.
A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?...
What will be inradius of an equilateral triangle of side 4 cm?
