Question
An article is marked up by P% above the cost price. If
shopkeeper offers discount of 25% and still earns a profit of 35%. For earning a profit of 71%, how much discount should be offered by shopkeeper?Solution
Let MP = 100x, then SP = 75x CP × (135/100) = 75x CP = 500x/9 Now, 71% of profit is given in new CP. (500x/9) × (171/100) = SP new SP = 95x Therefore, D% = (100x – 95x)/100 × 100 = 5%
If cosec2A = (sin60o + tan45o X sec245o), then find the value of sin2A.
cot 4˚ x cot 47˚ x cot 42.3˚ x cot 43˚ x cot 47.7˚ x cot 86˚= ?
What is the simplified value of the given expression?
2(sin² 15° + sin² 75°) + 4sin 30° - (2sec 60° + cot 45°)
If cos 2x = 1/2, then the value of x:
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
If 7sin²θ + 3cos²θ = 4, then find the value of θ?
If (tan 8θ · tan 2θ = 1), then find the value of (tan 10θ).
- Calculate the value of sin120 o  + cos180 o  + tan225 o .
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
...If tanθ + secθ = 5, find the value of sinθ.
