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The ratio of tensile strength to compressive strength of concrete is about

A husband and wife appear in an interview for two vacancies in the same post. The probability of husband's selection is 1/7 and that of wife's is 1/5. What is the probability that only one of them will be selected?

A charged particle moves with a uniform velocity 4ax m/s in a region where →E=20ay V/m and The value of B0 such that the velocity of the particlr remains constant is

In the fineness test of Rapid Hardening Portland Cement (RHPC) the residue on IS sieve No. 9 should not be more than.

If events A and B are independent and P(A) = 0.15, (P∪B) = 0.45 then P(B) = ?

Find the chance of throwing 2 blue balls in succession from a bag containing 5 red and 7 blue balls, if the balls are not being repeated.

In a simultaneous throw of two dice, find P (A or B) if A denotes the event 'a total of 11 and B denotes the event an odd number on each die.

In cement, generally the increase in strength during a period of 14 days to 28 days is primarily due to:

Find the probability that in a random arrangement of letter of the words "UNIVERSITY" two 'I' do not come together.

The appropriate expression in assessing development length is

Find the LCM of (x+3)(6x2+5x−4) and (2x2+7x+3)(x+3)

The total expenditure of a family, on different actives in a month, is shown in the pie-chart. The extra money spent on education as compared to transport (in percent) is ________

It was estimated that 52 men can complete a strip in a newly constructed highway connecting cities P and Q in 10 days. Due to an emergency, 12 men were sent to another project. How many number of days, more than the original estimate, will be required to complete the strip?

A bag contains 4 white and 2 black ball and 2nd bag contains 3 white and 5 black balls. If drawn from each bag, find the probability both are white.

What is the value of 1+14+116+164+1256+....?

The capacitance of an isolated conducting sphere of radius 18 cm placed in vacuum will be _____pF. (Answer upto 2 decimal places)20

Three coins are tossed. What is the probability of getting 2 Tails and 1 Head?

How much percent more than the cost price should a shopkeeper make his goods, so that after allowing a discount of 12.5% he should have a gain of 5% on his outlay?

The volume of one bag of cement weighing 50 kg is:

The exports and imports (in crores of Rs.) of a country from the year 2000 to 2007 are given in the following bar chart. In which year is the combined percentage increase in imports and exports the highest?4.54

The magnitude of gradient for the scalar function f(x,y,z)=x2+βy2+z3 at point (1, 1, 1) is 7 . The value of |β| is _______.3

The line integral of the vector field F=5xz^i+(3x2+2y)^j+x2z^k along a path form (0,0,0) to (1,1,1) parameterized by (t,t2,t) is4.41

There are 3 Indians and 3 Chinese in a group of 6 people. How many subgroups of this group can we choose so that every subgroup has at least one Indian ?

A transparent square sheet above is folded along the dotted line. The folded sheet will look like _____.

Consider the following data for concrete with mild exposure:Water/cement ratio =0.50Water =191.6 literThe required cement content will be

Consider the length of a room is 15m and width is 10m. If the sum of the area of the floor and ceiling is equal to the sum of area of the four walls, then the volume of the room is

The mirror image of the above text about the y-axis is

Four main oxides present in ordinary Portland cement are CaO,Al2O3SiO2 and Fe2O3. Identify the correct ascending order of their proportions in a typical composition of OPC

A digital diary is sold for Rs.935 at a profit of 10%. What would have been the actual profit or loss on it, if it had been sold for Rs.810

Consider the rectangle ABCD in the figure where DE=13DCThe area of the triangle ADE is 20cm2, then what will be the area of the rectangle ABCD?

While testing the compressive strength of cement concrete, the correct standard conditions (viz temperature, age, humidity and size of the specimen) to be maintained as per IS are

The magnetic field intensity →H at the centre of current carrying loop (circular in space) and kept in x -y plane as shown will be

In a single throw of two dice, find the probability of getting a total of 3 or 5.

From a pack of 52 playing cards, three cards are drawn at random. Find the probability of drawing a king, a queen and jack.

Which one of the figures shown below occupies the blank space (?) in the matrix given above?

For R.C.C. construction, the maximum size of coarse aggregate is limited to :

Direction: The gross investment of Life insurance Corporation of India (in crores of rupees) in different sectors are shown in the pie chart given belowOn the basic of the above information answer the following questions.The magnitude of ∠AOC is nearly:

Suhas surveyed the opinions of 50 students from his class on the impact of social media in their lives. How many people felt that social media is time-consuming?

In the figure below, ∠DEC+∠BFC is equal to ______

A square has sides 5cm smaller than the sides of a second square. The area of the larger square is four times the area of the smaller square. The side of the larger square is ____cm.

The maximum bulking of sand is likely to occur at a moisture content of

Given a vector field →F, the divergence theorem states that

Consider a square sheet of side 1 unit. The sheet is first folded along the main diagonal. This is followed by a fold along its line of symmetry. The resulting folded shape is again folded along its line of symmetry. The area of each face of the final folded shape, in square units, equal to _____.

Two balls are to be drawn from a bag containing 8 grey and 3 blue balls. Find the chance that they will both be blue.

Three coins are tossed, the probability that at least one tail is :

A filamentary current of 10 A is directed.in from infinity to the origin on the positive x-axis.The magnetic field intensity →H at (0,0, 1) is