Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'D'. (Ignore the errors of punctuation, if any).
When was 'Montreal protocol' signed by 24 nations
A certain BCD-to-decimal decoder has active-HIGH inputs and active-LOW outputs. Which output goes LOW when the inputs are 1001
A phone was purchased for $4000 and sold for $4800. profit percentage should be
If Cost Price is 940 and profit is 7%, then sales price should be
Printed price on wrapper or tag of item is known as
John and Peter purchased Computer with an investment of $16, 000 and $20, 000 respectively. They earned a profit of $5000. share of each should be
Marked price of a fan is $850, it is sold for $800. percentage discount allowed is
John bought 5 pies for $10 and sold 8 pies for $10, lost percentage should be
Sara bought a shirt for $135 and sold it for $110 to her friend. Her loss percentage is
If Sales Price is 2640 and loss is 12%, then cost price should be
(100 × Selling price)/100 + profit % is called
(Discount / mp) × 100 is equal to
A shopkeeper earns o profit of 30% by selling a table for $2500. cost price should be