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I am unable to take the missed free Mocks and also unable to view the solutions of the ones i have taken..I was able to view them earlier..What is the issue?Looking forward to a solution soon

If 3 coins are tossed are together,find
the probability that at least one of the coins show head.
please explain it clearly

without stoppage a train travels a certain distance at an avg speed of 60 km/h and with stoppage it travels at 40 km/h. on an avg how many min per hour does the train stop during journey?

I have been performing very badly in Mock CATs , so how can I improve to reach 95+% Ile from now??

Can I get solutions of test given. I haven't opted for premium but cn i get for d same

only test series that is DASHCAT enrollment cost?~

how can I do well in RCs?? I am very weak at it

Quadratic

If the roots x1x1 and x2x2 are the roots of the quadratic equation x2−2x+c=0x2−2x+c=0 also satisfy the equation 7x2–4x1=477x2–4x1=47, then which of the following is true? A c = –15 B x1=−5x1=−5 and x2=3x2=3 C x1=4.5x1=4.5 and x2=−2.5x2=−2.5 D None of these .

Four parts of the grammatically incorrect sentence are given as options below, find the part of the sentence which is grammatically incorrect?
A
Having always been an early riser,

B
waking up early and

C
going for a jog

D
has always been very important to me

Answer provided is D..the reason stated was that as there are two actions being described, we need to use have.But if both actions are considered as a single idea and one complete action, isn't 'has' correct?
the sentence could be re framed as Being an early riser, waking up early and going for a jog has always been very important to me.
Is there anything wrong in this construction?