Question
‘U’ and ‘V’ invested Rs. 8100 and Rs. 5400
respectively for 5 and 9 months. U retained 30% of his profit after donating the rest. He received Rs. 1890 as his profit. What was the total profit?Solution
ATQ,
Profit ratio of U and V = 8100 × 5 : 5400 × 9 = 40500 : 48600 = 15 : 18 = 5 : 6
U’s total profit = 1890 / 0.30 = Rs. 6300
Each part = 6300 / 5 = 1260 → Total profit = 1260 × (5 + 6) = Rs. 13860
The lengths of three medians in a triangles are 9 cm, 12 cm, 15 cm. What is the area of that traingle (in cm 2 )?
If I is the incentre of ΔABC , if ∠ BAC = 500 , then what is the measure of ∠ BIC?
In ΔABC, PQ is parallel to BC If AP: PB= 2:5 and AQ= 2 cm, AC is equal to?
AB and AC are the two tangents to a circle whose radius is 6 cm. If ∠ BAC = 60o, then what is the value (in cm) of √(AB2 + AC...
If G is the centroid and AD, BE, CF are three medians of ∆AGF with area 11 cm 2 , then the area of ∆ABC is?
If I is the incentre of ΔABC , if ∠ BAC = 300 , then what is the measure of ∠ BIC?
The perimeters of 2 similar triangles ∆ABC and ∆PQR are 18 cm and 12 cm respectively. If PQ= 8 cm, then AB is?
In ΔABC, PQ is parallel to BC If AP: PB=1:2 and AQ=3 cm, AC is equal to?