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4 / 7 of a number is 84. Find the number.

Let the number be x.(4 / 7) x = 84x = [84 * 7] / 4x = 21 * 7x = 147... View Article

Write the following in decreasing order: 85, 210, -58, 2011, -1024, 528, 364, -10000,12.

2011 > 528 > 364 > 210 > 85 > 12 > – 58 > -1024 < -10,000 2011, 528, 364, 210, 85, 12, -58, -1024, -10,000.... View Article

Find the derivative of [tan^-1 x / (1 + tan^-1 x)] with respect to tan^-1 x.

d [tan-1 x / (1 + tan-1 x)]... View Article

Find x, if x : 39 :: 6 : 8.

x : 39 :: 6 : 8x / 39 = 6 / 8x = [6 * 39] / 8x = 117 / 4x = 29.25... View Article

Find the value of x if (5 / 7)⁶ (7 / 5)^-9 = (5 / 7)^3x.

(5 / 7)6 (7 / 5)-9 = (5 / 7)3x... View Article

Divide 0.3 by 100.

0.3 ÷ 100 = 0.3 / 100= 0.003... View Article

The cost of dozen eggs is 60 Rs. Find the cost of 4 eggs.

A dozen eggs cost 60 Rupees.Assume the cost of 1 egg to be ‘x’ Rs.1 dozen = 12 eggsCost of 1 egg = x = 60 / 12 ⇒ x = 5 RsThe... View Article

125 + (68 + 17) = (125 + _____ ) + 17.

Assume the number to be K.125 + (68 + 17) = (125 + K) + 17125 + 85 = 125 + K + 17K = 125 + 85 - 125 - 17K = 85 - 17K = 68... View Article

Is Bhavana five years old? (I) Kalpana is seven years old and is younger than Bhavana. (II) Bhavana is two years older than Ramesh, who is six years old. A) Statement (I) alone is sufficient, but statement (II) alone is not sufficient. B) Statement (II) alone is sufficient, but statement (I) alone is not sufficient. C) Both statements together are sufficient, but neither statement alone is sufficient. D) Each statement alone is sufficient.

(I) Kalpana is seven years old and is younger than Bhavana. ⇒ Kalpana = 7 years < Bhavana⇒ Bhavana ≠ 5 years(II) Bhavana is two... View Article

Express the given ratios in their simplest forms: 2 hours 30 minutes: 60 minutes.

2 hour 30 minutes1 hour = 60 minutes2 hour = 2 × 60 minutes = 120 minutes2 hour 30 minutes = 120 minutes + 30 minutes= 150 minutes150... View Article

Most Of The Petrocrops Belong To Family Of:(A)Rutaceae. (B)Malvaceae. (C) Leguminosae. (D) Euphorbiaceae.

The correct answer is (D) Euphorbiaceae. Explore more such questions and answers at BYJU’S.... View Article

What Is DC Motor?

A DC motor is an electrical machine that converts electrical energy into mechanical energy. In a DC motor, the input electrical energy is the... View Article

Which Of The Following Is A Primary Consumer? (A) Herbivore. (B) Carnivore. (C) Scavenger. (D) Saprophyte.

The correct answer is (A) Herbivore. Herbivores animals who eat producers or plants are called primary consumers. Cattles, deer, bears,... View Article

At What Time Between 530 And 6 Will The Hands Of The Clock Be Inclined At 90°?

Sol: At 5 o'clock, the hands are 25 min. Spaces apart. To be at right angles between 5.30 and 6, the minute hand has to gain (25+15)=40 min... View Article

What Is The Formula Of Aluminum Phosphate?

The chemical formula of Aluminum Phosphate is AlPO4. Explore more such questions and answers at BYJU’S.... View Article

Corolla Is Composed Of______. (A) Sepals.(B) Petals.(C) Stamens.(D) None Of These.

The correct answer is (B) Petals. The flower is the reproductive unit in the angiosperms. A typical flower has four different kinds of whorls-... View Article

The Theory Of Panspermia Is Also Called As______. (A)Theory Of Biogenesis. (B)Naturalistic Theory. (C) Cosmozoic Theory. (D)Theory Of Catastrophism.

The correct answer is (C) Cosmozoic Theory. Explore more such questions and answers at BYJU’S.... View Article

Photooxidation Of Chlorophyll Is Called As_______. (A) Chlorosis.(B) Solarization.(C) Defoliation.(D) Intensification.

The correct answer is (B) Solarization. Explore more such questions and answers at BYJU’S.... View Article

The Aim Of Prime Minister Rozgar Yojana (Pmry) Is To Create Self-employment Opportunities For Educated Unemployed Youth In Rural Ares And _________. (A)Cities. (B) States. (C)Small Towns. (D) None Of These.

The correct answer is (C)Small Towns. Explore more such questions and answers at BYJU’S.... View Article

Borax Bead Test Is Given By _____.

Borax bead test is given by cobalt salt, copper salt and nickelate salt. Borax bead test is a test to determine the presence of certain metals.... View Article