Find a single discount percentage equivalent to successive discounts of 20%, 30%, and 35% ?
Total discount allowed after first 2 discounts = 20 + 30 – {(20 × 30)/100} = 44% So, required percentage = 44 + 35 – {(35 ×44)/100} =63.6 % Alternate solution: Let the marked price be Rs.100x So, selling price = 100x × (4/5) × (7/10) × (13/20) = Rs. 36.4x So, total discount allowed = 100x – 36.4x = 63.6%xRs. required percentage=(63.6x/100x) ×100=63.6%
A 220 V, 100 W bulb is connected to a 110 V source. Calculate the power consumed by the bulb
A battery of emf 12 V and internal resistance 4 ohm is connected to a resistor. If the current in the circuit is 0.6 A, what is the resistance of the re...
Ultrasonic pulse echo technique, a non-destructive ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm...
When a forward bias is applied to a p-n junction, it
The correct option, if speeds of gamma rays, X-rays and microwave are Vg, Vx an Vm respectively will be
A constant retarding force of 20 N is applied to a body of mass 10 kg moving initially with a speed of 12 m s–1. How long does the body tak...
Which one of the following is called a red planet?
Going from fluorine to chlorine, to bromine and then to iodine, the electro negativity:
If an agent does a work 'W' in time 't', then the power is given by:__________.
In order to investigate the internal atomic structure of crystals, we make use of:
